efcore: MAUI Blazor - database no longer works in Android Release mode

Description

After upgrading EF Core (sqlite) from 8.0.0-preview.6.23329.4 to 8.0.0-rc.1.23419.6 my app now throws when using the database in Android Release mode. It’s fine on Android Debug and Windows Debug/Release.

You’ll see in the attached log that it’s observable at the await dbSeeder.SeedAsync() call in Index.OnInitializedAsync().

Steps to Reproduce

  1. Clone repo
  2. Run on Android emulator in Release mode
  3. An error occurred with the app during the loading screen

Link to public reproduction project repository

https://github.com/danielchalmers/JournalApp

Affected platforms

Android

Relevant log output

10-10 16:45:18.155 23621 23644 I DOTNET  : fail: JournalApp.Index[0]
10-10 16:45:18.155 23621 23644 I DOTNET  :       database error
10-10 16:45:18.155 23621 23644 I DOTNET  :       System.ArgumentNullException: ArgumentNull_Generic Arg_ParamName_Name, source
10-10 16:45:18.155 23621 23644 I DOTNET  :          at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument )
10-10 16:45:18.155 23621 23644 I DOTNET  :          at System.Linq.Enumerable.Count[IReadOnlyForeignKey](IEnumerable`1 source)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetDefaultColumnName(IReadOnlyProperty property)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetDefaultColumnName(IReadOnlyProperty property, StoreObjectIdentifier& storeObject)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetColumnName(IReadOnlyProperty property, StoreObjectIdentifier& storeObject)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetMappedStoreObjects(IReadOnlyProperty property, StoreObjectType storeObjectType)+MoveNext()
10-10 16:45:18.155 23621 23644 I DOTNET  :          at System.Linq.Enumerable.TryGetFirst[StoreObjectIdentifier](IEnumerable`1 source, Boolean& found)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at System.Linq.Enumerable.FirstOrDefault[StoreObjectIdentifier](IEnumerable`1 source)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.RelationalValueGenerationConvention.GetValueGenerated(IConventionProperty property)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.ValueGenerationConvention.ProcessForeignKeyAdded(IConventionForeignKeyBuilder relationshipBuilder, IConventionContext`1 context)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ImmediateConventionScope.OnForeignKeyAdded(IConventionForeignKeyBuilder relationshipBuilder)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.OnForeignKeyAddedNode.Run(ConventionDispatcher dispatcher)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.DelayedConventionScope.Run(ConventionDispatcher dispatcher)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ConventionBatch.Run()
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ConventionBatch.Dispose()
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ImmediateConventionScope.OnModelInitialized(IConventionModelBuilder modelBuilder)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.OnModelInitialized(IConventionModelBuilder modelBuilder)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Metadata.Internal.Model..ctor(ConventionSet conventions, ModelDependencies modelDependencies, ModelConfiguration modelConfiguration)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.ModelBuilder..ctor(ConventionSet conventions, ModelDependencies modelDependencies, ModelConfiguration modelConfiguration)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.ModelConfigurationBuilder.CreateModelBuilder(ModelDependencies modelDependencies)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder, ModelDependencies modelDependencies)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.GetModel(DbContext context, ModelCreationDependencies modelCreationDependencies, Boolean designTime)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel(Boolean designTime)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model()
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder.<>c.<TryAddCoreServices>b__8_4(IServiceProvider p)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite , RuntimeResolverContext )
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite callSite, RuntimeResolverContext argument)
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite , RuntimeResolverContext )
10-10 16:45:18.155 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite callSite, RuntimeResolverContext argument)
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite callSite, RuntimeResolverContext argument)
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite callSite, RuntimeResolverContext argument)
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite callSite, RuntimeResolverContext argument)
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite callSite, RuntimeResolverContext argument)
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite , ServiceProviderEngineScope )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeServiceProviderEngine.<>c__DisplayClass4_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(ServiceIdentifier , ServiceProviderEngineScope )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider , Type )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[IDbContextDependencies](IServiceProvider )
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies()
10-10 16:45:18.156 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.DbContext.get_ContextServices()
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider()
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.DbContext.Microsoft.EntityFrameworkCore.Infrastructure.IInfrastructure<System.IServiceProvider>.get_Instance()
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.Internal.InfrastructureExtensions.GetService(IInfrastructure`1 accessor, Type serviceType)
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.Internal.InfrastructureExtensions.GetService[IDatabaseFacadeDependencies](IInfrastructure`1 accessor)
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.AccessorExtensions.GetService[IDatabaseFacadeDependencies](IInfrastructure`1 accessor)
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade.get_Dependencies()
10-10 16:45:18.157 23621 23644 I DOTNET  :          at Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade.EnsureCreated()
10-10 16:45:18.157 23621 23644 I DOTNET  :          at JournalApp.ApplicationDbSeeder.SeedAsync()
10-10 16:45:18.157 23621 23644 I DOTNET  :          at JournalApp.Index.OnInitializedAsync()

About this issue

  • Original URL
  • State: open
  • Created 9 months ago
  • Reactions: 5
  • Comments: 34 (7 by maintainers)

Commits related to this issue

Most upvoted comments

Putting my vote in here for this to be repaired in an 8.x service release please, this is forcing us to deliver Debug builds for our Android clients or split code logic paths for Android specifically when interacting with SQLite, this feels like this should be higher priority if at all possible.

+6
bengavin on Dec 13, 2023

The root cause seems to be same as in https://github.com/dotnet/runtime/issues/96264

+2
AndriySvyryd on Dec 22, 2023

Note for triage: Even with AOT and trimming disabled, this still fails in Release mode but works in Debug mode. It’s not clear to me there is anything we can do here, other than report back again if this still doesn’t work when trimming and AOT are fully supported.

+2
ajcvickers on Nov 21, 2023

I second this, .NET MAUI with EF core and SQLite, doesn’t work in release mode, does work in debug mode.

+2
widavies on Oct 17, 2023

I’m running into this issue even when the project is compiled in Debug mode. This is on a .NET Android project using EFCore 8.0.0 Downgrading to EFCore 7.0.14 does fix the problem.

I get the following stack trace. Looking at the EFCore source it appears it’s trying to access a list of foreign keys. The queries that throw this error use entities that have no foreign keys. It could be just adding a simple null check could fix this problem?

I noticed that this bug is added to the 9.0.0 milestone. Is the plan to leave this broken until EFCore 9.0 is released?

android.runtime.JavaProxyThrowable: [System.ArgumentNullException]: Value cannot be null. (Parameter 'source') at System.Linq.ThrowHelper.ThrowArgumentNullException(Unknown Source:0) at System.Linq.Enumerable.All(Unknown Source:0) at Microsoft.EntityFrameworkCore.Metadata.Conventions.ValueGenerationConvention.GetValueGenerated(Unknown Source:0) at Microsoft.EntityFrameworkCore.Metadata.Conventions.RelationalValueGenerationConvention.GetValueGenerated(Unknown Source:0)

+1
snydesc on Nov 30, 2023

First, compiled model doesn’t work: https://github.com/dotnet/efcore/issues/32346

Second, here is a repo: https://github.com/pekspro/MauiIssues/tree/EfCore32040

It’s a very simple application with a simple dbcontext and instructions how to build for Android where I’m having this issue. Windows in release mode seems to be fine.

Here is the stack trace:

FATAL EXCEPTION: main
Process: com.companyname.mauiissues, PID: 14191
android.runtime.JavaProxyThrowable: [System.ArgumentNullException]: Value cannot be null. (Parameter 'source')
	at System.Linq.ThrowHelper.ThrowArgumentNullException(Unknown Source:0)
	at System.Linq.Enumerable.All(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.ValueGenerationConvention.GetValueGenerated(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.RelationalValueGenerationConvention.GetValueGenerated(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.RelationalValueGenerationConvention.GetValueGenerated(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.ValueGenerationConvention.ProcessEntityTypePrimaryKeyChanged(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher+ImmediateConventionScope.OnEntityTypePrimaryKeyChanged(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher+OnEntityTypePrimaryKeyChangedNode.Run(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher+DelayedConventionScope.Run(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher+ConventionBatch.Run(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher+ConventionBatch.Dispose(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher+ImmediateConventionScope.OnModelInitialized(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.OnModelInitialized(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Metadata.Internal.Model..ctor(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.ModelBuilder..ctor(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.ModelConfigurationBuilder.CreateModelBuilder(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.GetModel(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder+<>c.<TryAddCoreServices>b__8_4(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=8.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeServiceProviderEngine+<>c__DisplayClass4_0.<RealizeService>b__0(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(Unknown Source:0)
	at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.DbContext.get_ContextServices(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.DbContext.Microsoft.EntityFrameworkCore.Infrastructure.IInfrastructure<System.IServiceProvider>.get_Instance(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.Internal.InfrastructureExtensions.GetService(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.Internal.InfrastructureExtensions.GetService(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.AccessorExtensions.GetService(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade.get_Dependencies(Unknown Source:0)
	at Microsoft.EntityFrameworkCore.Infrastructure.DatabaseFacade.EnsureDeleted(Unknown Source:0)
	at MauiIssues.MauiProgram.CreateMauiApp(Unknown Source:0)
	at MauiIssues.MainApplication.CreateMauiApp(Unknown Source:0)
	at Microsoft.Maui.MauiApplication.OnCreate(Unknown Source:0)
	at Android.App.Application.n_OnCreate(Unknown Source:0)
	at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(Unknown Source:0)
	at crc6488302ad6e9e4df1a.MauiApplication.n_onCreate(Native Method)
	at crc6488302ad6e9e4df1a.MauiApplication.onCreate(MauiApplication.java:28)
	at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1277)
	at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6805)
	at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0)
	at MauiIssues.MauiProgram.CreateMauiApp(Unknown Source:0)
	at MauiIssues.MainApplication.CreateMauiApp(Unknown Source:0)
	at Microsoft.Maui.MauiApplication.OnCreate(Unknown Source:0)
	at crc6488302ad6e9e4df1a.MauiApplication.n_onCreate(Native Method)
	at crc6488302ad6e9e4df1a.MauiApplication.onCreate(MauiApplication.java:28)
	at MauiIssues.MauiProgram.CreateMauiApp(Unknown Source:0)
	at MauiIssues.MainApplication.CreateMauiApp(Unknown Source:0)
	at Microsoft.Maui.MauiApplication.OnCreate(Unknown Source:0)
	at crc6488302ad6e9e4df1a.MauiApplication.n_onCreate(Native Method)
	at crc6488302ad6e9e4df1a.MauiApplication.onCreate(MauiApplication.java:28)
  Force finishing activity com.companyname.mauiissues/crc646fc900390516a390.MainActivity
+1
pekspro on Nov 20, 2023

Here’s a variant of the error that I get:

System.NullReferenceException: Object reference not set to an instance of an object
   at Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty.FindFirstPrincipal()
   at Microsoft.EntityFrameworkCore.Metadata.Internal.PropertyExtensions.FindFirstDifferentPrincipal(IReadOnlyProperty property)
   at Microsoft.EntityFrameworkCore.Metadata.RuntimeProperty.GetKeyValueComparer(HashSet`1 checkedProperties)
   at Microsoft.EntityFrameworkCore.Metadata.RuntimeProperty.GetKeyValueComparer()
   at Microsoft.EntityFrameworkCore.Metadata.RuntimeProperty.<>c.<Microsoft.EntityFrameworkCore.Metadata.IProperty.GetKeyValueComparer>b__78_0(RuntimeProperty property)
   at Microsoft.EntityFrameworkCore.Internal.NonCapturingLazyInitializer.EnsureInitialized[RuntimeProperty,ValueComparer](ValueComparer& target, RuntimeProperty param, Func`2 valueFactory)
   at Microsoft.EntityFrameworkCore.Metadata.RuntimeProperty.Microsoft.EntityFrameworkCore.Metadata.IProperty.GetKeyValueComparer()
   at Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression.<.ctor>g__GenerateNonHierarchyNonSplittingEntityType|23_0(ITableBase table, TableExpressionBase tableExpression, <>c__DisplayClass23_0& )
   at Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression..ctor(IEntityType entityType, ISqlExpressionFactory sqlExpressionFactory)
   at Microsoft.EntityFrameworkCore.Query.SqlExpressionFactory.Select(IEntityType entityType)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.CreateShapedQueryExpression(IEntityType entityType)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitExtension(Expression extensionExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitExtension(Expression extensionExpression)
   at System.Linq.Expressions.Expression.Accept(ExpressionVisitor visitor)
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.VisitMethodCall(MethodCallExpression methodCallExpression)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor )
   at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
   at Microsoft.EntityFrameworkCore.Query.QueryableMethodTranslatingExpressionVisitor.Translate(Expression expression)
   at Microsoft.EntityFrameworkCore.Query.RelationalQueryableMethodTranslatingExpressionVisitor.Translate(Expression expression)
   at Microsoft.EntityFrameworkCore.Query.QueryCompilationContext.CreateQueryExecutor[Task`1](Expression query)
   at Microsoft.EntityFrameworkCore.Storage.Database.CompileQuery[Task`1](Expression query, Boolean async)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.CompileQueryCore[Task`1](IDatabase database, Expression query, IModel model, Boolean async)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass12_0`1[[System.Threading.Tasks.Task`1[[System.Int32, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<ExecuteAsync>b__0()
   at Microsoft.EntityFrameworkCore.Query.Internal.CompiledQueryCache.GetOrAddQuery[Task`1](Object cacheKey, Func`1 compiler)
   at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.ExecuteAsync[Task`1](Expression query, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryProvider.ExecuteAsync[Task`1](Expression expression, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ExecuteAsync[IGrouping`2,Task`1](MethodInfo operatorMethodInfo, IQueryable`1 source, Expression expression, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ExecuteAsync[IGrouping`2,Task`1](MethodInfo operatorMethodInfo, IQueryable`1 source, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.CountAsync[IGrouping`2](IQueryable`1 source, CancellationToken cancellationToken)
+1
widavies on Oct 23, 2023
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