azure-functions-host: Unable to run Durable Functions with Azure Storage Emulator v5.8

I was successfully running Durable Functions for a few weeks but now all of a sudden I am not able to run them and am getting the following output. Not sure what has changed – any pointers on what to look at would be most appreciated. I have also included a related stacktrace below.

Azure Functions Core Tools (2.1.725 Commit hash: 68f448fe6a60e1cade88c2004bf6491
af7e5f1df)
Function Runtime Version: 2.0.12134.0
[10/14/2018 10:17:59 PM] Building host: startup suppressed:False, configuration
suppressed: False
[10/14/2018 10:17:59 PM] Reading host configuration file 'C:\Users\csheets\sourc
e\repos\FunctionApp4\FunctionApp1\bin\Debug\netstandard2.0\host.json'
[10/14/2018 10:17:59 PM] Host configuration file read:
[10/14/2018 10:17:59 PM] {
[10/14/2018 10:17:59 PM]   "version": "2.0"
[10/14/2018 10:17:59 PM] }
[10/14/2018 10:18:38 PM] A host error has occurred
[10/14/2018 10:18:38 PM] Microsoft.WindowsAzure.Storage: Server encountered an i
nternal error. Please try again after some time.
Listening on http://0.0.0.0:7071/
Hit CTRL-C to exit...

The following is a stacktrace that is being thrown:

System.AggregateException
  HResult=0x80131500
  Message=One or more errors occurred.
  Source=System.Private.CoreLib
  StackTrace:
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at Microsoft.WindowsAzure.Storage.Blob.BlobWriteStream.<Dispose>b__8_0()
   at Microsoft.WindowsAzure.Storage.Core.Util.CommonUtility.RunWithoutSynchronizationContext(Action actionToRun)
   at Microsoft.WindowsAzure.Storage.Blob.BlobWriteStream.Dispose(Boolean disposing)
   at System.IO.Stream.Close()
   at System.IO.StreamWriter.Dispose(Boolean disposing)
   at System.IO.TextWriter.Dispose()
   at Microsoft.Azure.WebJobs.Script.WebHost.BlobStorageSecretsRepository.<WriteToBlobAsync>d__22.MoveNext() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\KeyManagement\BlobStorageSecretsRepository.cs:line 167
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Microsoft.Azure.WebJobs.Script.WebHost.BlobStorageSecretsRepository.<WriteAsync>d__18.MoveNext() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\KeyManagement\BlobStorageSecretsRepository.cs:line 128
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Microsoft.Azure.WebJobs.Script.WebHost.SecretManager.<PersistSecretsAsync>d__26`1.MoveNext() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\KeyManagement\SecretManager.cs:line 412
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Microsoft.Azure.WebJobs.Script.WebHost.SecretManager.<GetHostSecretsAsync>d__11.MoveNext() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\KeyManagement\SecretManager.cs:line 82
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.Azure.WebJobs.Script.WebHost.DefaultScriptWebHookProvider.<GetOrCreateExtensionKey>d__6.MoveNext() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\WebHooks\DefaultScriptWebHookProvider.cs:line 72
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.Azure.WebJobs.Script.WebHost.DefaultScriptWebHookProvider.GetExtensionWebHookRoute(String extensionName) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\WebHooks\DefaultScriptWebHookProvider.cs:line 64
   at Microsoft.Azure.WebJobs.Script.WebHost.DefaultScriptWebHookProvider.GetUrl(IExtensionConfigProvider extension) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\WebHooks\DefaultScriptWebHookProvider.cs:line 49
   at Microsoft.Azure.WebJobs.Host.Config.ExtensionConfigContext.GetWebhookHandler() in C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Config\ExtensionConfigContext.cs:line 55
   at Microsoft.Azure.WebJobs.Extensions.DurableTask.DurableTaskExtension.Microsoft.Azure.WebJobs.Host.Config.IExtensionConfigProvider.Initialize(ExtensionConfigContext context)
   at Microsoft.Azure.WebJobs.Host.DefaultExtensionRegistryFactory.Create() in C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\DefaultExtensionRegistryFactory.cs:line 38
   at Microsoft.Azure.WebJobs.WebJobsServiceCollectionExtensions.<>c.<AddWebJobs>b__1_0(IServiceProvider p) in C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Hosting\WebJobsServiceCollectionExtensions.cs:line 50
   at DryIoc.Microsoft.DependencyInjection.DryIocAdapter.<>c__DisplayClass3_0.<RegisterDescriptor>b__0(IResolverContext r) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\DryIocAdapter.cs:line 156
   at DryIoc.Registrator.<>c__DisplayClass27_0.<RegisterDelegate>b__0(IResolverContext r) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 4530
   at DryIoc.Factory.<>c__DisplayClass26_1.<ApplyReuse>b__2() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6584
   at DryIoc.Scope.TryGetOrAdd(ImMap`1 items, Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7825
   at DryIoc.Scope.GetOrAdd(Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7810
   at DryIoc.Factory.ApplyReuse(Expression serviceExpr, Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6583
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6544
   at DryIoc.Factory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6611
   at DryIoc.DelegateFactory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7719
   at DryIoc.Container.DryIoc.IResolver.Resolve(Type serviceType, Object serviceKey, IfUnresolved ifUnresolved, Type requiredServiceType, Request preResolveParent, Object[] args) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 290
   at DryIoc.Factory.<>c__DisplayClass26_1.<ApplyReuse>b__2() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6584
   at DryIoc.Scope.TryGetOrAdd(ImMap`1 items, Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7825
   at DryIoc.Scope.GetOrAdd(Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7810
   at DryIoc.Factory.ApplyReuse(Expression serviceExpr, Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6583
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6544
   at DryIoc.Factory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6611
   at DryIoc.Container.ResolveAndCacheDefaultFactoryDelegate(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 210
   at DryIoc.Container.DryIoc.IResolver.Resolve(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 195
   at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.JobHostServiceProvider.GetService(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\JobHostServiceProvider.cs:line 96
   at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.JobHostServiceProvider.GetRequiredService(Type serviceType) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\JobHostServiceProvider.cs:line 79
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Microsoft.Azure.WebJobs.WebJobsServiceCollectionExtensions.<>c.<AddWebJobs>b__1_4(IServiceProvider p) in C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Hosting\WebJobsServiceCollectionExtensions.cs:line 83
   at DryIoc.Microsoft.DependencyInjection.DryIocAdapter.<>c__DisplayClass3_0.<RegisterDescriptor>b__0(IResolverContext r) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\DryIocAdapter.cs:line 156
   at DryIoc.Registrator.<>c__DisplayClass27_0.<RegisterDelegate>b__0(IResolverContext r) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 4530
   at DryIoc.Factory.<>c__DisplayClass26_1.<ApplyReuse>b__2() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6584
   at DryIoc.Scope.TryGetOrAdd(ImMap`1 items, Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7825
   at DryIoc.Scope.GetOrAdd(Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7810
   at DryIoc.Factory.ApplyReuse(Expression serviceExpr, Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6583
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6544
   at DryIoc.Factory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6611
   at DryIoc.DelegateFactory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7719
   at DryIoc.Container.DryIoc.IResolver.Resolve(Type serviceType, Object serviceKey, IfUnresolved ifUnresolved, Type requiredServiceType, Request preResolveParent, Object[] args) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 290
   at DryIoc.Factory.<>c__DisplayClass26_1.<ApplyReuse>b__2() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6584
   at DryIoc.Scope.TryGetOrAdd(ImMap`1 items, Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7825
   at DryIoc.Scope.GetOrAdd(Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7810
   at DryIoc.Factory.ApplyReuse(Expression serviceExpr, Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6583
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6544
   at DryIoc.ReflectionFactory.CreateExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7059
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6534
   at DryIoc.ReflectionFactory.CreateExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7059
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6534
   at DryIoc.Factory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6611
   at DryIoc.Container.ResolveAndCacheDefaultFactoryDelegate(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 210
   at DryIoc.Container.DryIoc.IResolver.Resolve(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 195
   at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.JobHostServiceProvider.GetService(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\JobHostServiceProvider.cs:line 96
   at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.JobHostServiceProvider.GetRequiredService(Type serviceType) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\JobHostServiceProvider.cs:line 79
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Microsoft.Azure.WebJobs.Script.ScriptHostBuilderExtensions.<>c.<AddScriptHostCore>b__2_5(IServiceProvider p) in C:\azure-webjobs-sdk-script\src\WebJobs.Script\ScriptHostBuilderExtensions.cs:line 115
   at DryIoc.Microsoft.DependencyInjection.DryIocAdapter.<>c__DisplayClass3_0.<RegisterDescriptor>b__0(IResolverContext r) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\DryIocAdapter.cs:line 156
   at DryIoc.Registrator.<>c__DisplayClass27_0.<RegisterDelegate>b__0(IResolverContext r) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 4530
   at DryIoc.Factory.<>c__DisplayClass26_1.<ApplyReuse>b__2() in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6584
   at DryIoc.Scope.TryGetOrAdd(ImMap`1 items, Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7825
   at DryIoc.Scope.GetOrAdd(Int32 id, CreateScopedValue createValue, Int32 disposalOrder) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7810
   at DryIoc.Factory.ApplyReuse(Expression serviceExpr, Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6583
   at DryIoc.Factory.GetExpressionOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6544
   at DryIoc.Factory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 6611
   at DryIoc.DelegateFactory.GetDelegateOrDefault(Request request) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 7719
   at DryIoc.Container.ResolveAndCacheDefaultFactoryDelegate(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 210
   at DryIoc.Container.DryIoc.IResolver.Resolve(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\DryIoc\Container.cs:line 195
   at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.JobHostServiceProvider.GetService(Type serviceType, IfUnresolved ifUnresolved) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\JobHostServiceProvider.cs:line 96
   at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.JobHostServiceProvider.GetRequiredService(Type serviceType) in C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\DependencyInjection\JobHostServiceProvider.cs:line 79
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Azure.Functions.Cli.Actions.HostActions.StartHostAction.<RunAsync>d__44.MoveNext()

Inner Exception 1:
StorageException: Server encountered an internal error. Please try again after some time.

About this issue

Original URL
State: open
Created 6 years ago
Comments: 21 (8 by maintainers)

Most upvoted comments

Thanks - I downloaded 5.8 and observed the same problem. I have no idea why the Durable extension seems to be triggering this issue because the code path seems completely unrelated. I’ll follow up with the Azure Functions Host team. I think this might possibly be a problem with extensions that use web hooks.

Workaround

Here is a workaround I identified from the Functions Key Management documentation. In local.settings.json, add a new setting called AzureWebJobsSecretStorageType and set it to "files".

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet",
    "AzureWebJobsSecretStorageType": "files"
  }
}

/cc @fabiocav

+41

cgillum on Oct 16, 2018

Same thing is happening even if you have VS 2019 Installed and running Azure Storage Emulator 5.9. I had to add this entry to the local.settings.json to get the Azure Function to work.

chrislangston on Jun 29, 2019

I experienced the same issue. Thank you @cgillum for the workaround.

iwaldman on Jan 23, 2019

I experienced this issue after installing the Visual Studio 2019 Preview. Installing Storage Emulator 5.9 fixed it for me.

apsteger on Jan 7, 2019

Moving this to host repo for triage and assignment

fabiocav on Nov 19, 2018

ok - thanks

prior to your reply i ended up uninstalling and re-installing VS 2017 and that resolved the issue – looks like it re-installed Storage Emulator 5.6 in the process so just going to stay there for now

csheets on Oct 16, 2018