azure-functions-core-tools: Registration of a type derived from DbContext throws "Violates the constraint of type parameter DbContext"

We have an asp.net core 2.2 web API which works perfectly. We decided to move to Azure Durable Functions and hence started using IFunctionsHostBuilder to wire up the very same services. When running the application, the following exception is thrown.

[2019-05-25 6:04:29 PM] A host error has occurred [2019-05-25 6:04:29 PM] MyDurableFunctionApp.Function: GenericArguments[0], ‘MyDurableFunctionApp.Database.Context.AccountManagementDbContext’, on ‘MyDurableFunctionApp.Repository.DbContextTransaction`1[TDbContext]’ violates the constraint of type parameter ‘TDbContext’.

AccountManagementDbContext is derived indirectly from DbContext class defined in EF and TDbContext is a generic type which expects DbContext like the following code snippet:

public class DbContextTransaction<TDbContext> :  IDisposable where TDbContext : DbContext	
{
}

This is how the Azure Function’s defined:

<PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>
    <AzureFunctionsVersion>v2</AzureFunctionsVersion>
  </PropertyGroup>

There are two nuget packages that may be important to consider which are:

• Microsoft.EntityFrameworkCore.Tools ver 2.2.4
• Microsoft.AspNetCore.Identity.EntityFrameworkCore ver 2.2.0

This issue is a 100% blocker and unfortunately, we had to drop pursuing the path of Azure Functions until hopefully the issue is resolved by Microsoft.

FYI: @miladghafoori