ASP.Net Core UWP SignalR client HubConnectionBuilder.Build crash

[StephaneMartignier]

Hi everbody,

We are updating ours project from a Server with .Net Framework to a server with .Net Core 3.1 with Service Fabric. Based on that we migrate from SignalR to AspNetCore Signal R. In the server all seems to be working fine but we encounter a bug we can't figure out how to resolve in the UWP client. In debug mode all is working fine, but when we create a release of our client the SignalR connection failed when calling the Build method on HubConnectionBuilder.

var connectUrl = await ControllerManager.Instance.GetAsync<string>($"Signalr/connectionurl");
var token = ControllerManager.Instance.EchinoBearerToken;
_chatHubConnection = new HubConnectionBuilder()
.WithUrl($"{connectUrl}/signalr/chathub", options => {
options.AccessTokenProvider = () => Task.FromResult(token);
})
.Build();

The error message :
Microsoft.AspNetCore.HttpConnections.Client.HttpConnectionOptions on Microsoft.Extensions.Options.OptionsManager [TOptions] violates the constraint of type TOptions
Parameter name : GenericArguments[0]

The StackTrace:
at Internal.Reflection.Execution.ConstraintValidator.EnsureSatisfiesClassConstraints(Type[] typeParameters, Type[] typeArguments, Object definition, SigTypeContext typeContext) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.Reflection.Execution\src\Internal\Reflection\Execution\TypeLoader\ConstraintValidator.cs:line 86 at Internal.Reflection.Execution.ConstraintValidator.EnsureSatisfiesClassConstraints(Type typeDefinition, Type[] typeArguments) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.Reflection.Execution\src\Internal\Reflection\Execution\TypeLoader\ConstraintValidator.cs:line 96 at Internal.Reflection.Execution.ExecutionEnvironmentImplementation.TryGetConstructedGenericTypeForComponents(RuntimeTypeHandle genericTypeDefinitionHandle, RuntimeTypeHandle[] genericTypeArgumentHandles, RuntimeTypeHandle& runtimeTypeHandle) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.Reflection.Execution\src\Internal\Reflection\Execution\ExecutionEnvironmentImplementation.MappingTables.cs:line 356 at System.Reflection.Runtime.TypeInfos.RuntimeConstructedGenericTypeInfo.GetRuntimeTypeHandleIfAny(RuntimeTypeInfo genericTypeDefinition, RuntimeTypeInfo[] genericTypeArguments) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.Reflection.Core\src\System\Reflection\Runtime\General\TypeUnifier.cs:line 419 at System.Reflection.Runtime.TypeInfos.RuntimeConstructedGenericTypeInfo.GetRuntimeConstructedGenericTypeInfo(RuntimeTypeInfo genericTypeDefinition, RuntimeTypeInfo[] genericTypeArguments) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.Reflection.Core\src\System\Reflection\Runtime\General\TypeUnifier.cs:line 388 at System.Reflection.Runtime.TypeInfos.RuntimeTypeInfo.MakeGenericType(Type[] typeArguments) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.Reflection.Core\src\System\Reflection\Runtime\TypeInfos\RuntimeTypeInfo.cs:line 472 at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateOpenGeneric(ServiceDescriptor descriptor, Type serviceType, CallSiteChain callSiteChain, Int32 slot) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateOpenGeneric(Type serviceType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateCallSite(Type serviceType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.<>c__DisplayClass7_0.<GetCallSite>b__0(Type type) at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func2 valueFactory) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.GetCallSite(Type serviceType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateArgumentCallSites(Type serviceType, Type implementationType, CallSiteChain callSiteChain, ParameterInfo[] parameters, Boolean throwIfCallSiteNotFound) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateConstructorCallSite(ResultCache lifetime, Type serviceType, Type implementationType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(ServiceDescriptor descriptor, Type serviceType, CallSiteChain callSiteChain, Int32 slot) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(Type serviceType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateCallSite(Type serviceType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.<>c__DisplayClass7_0.<GetCallSite>b__0(Type type) at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func2 valueFactory) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.GetCallSite(Type serviceType, CallSiteChain callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.CreateServiceAccessor(Type serviceType) at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func2 valueFactory) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Type serviceType) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider) at Microsoft.AspNetCore.SignalR.Client.HubConnectionBuilder.Build() at Echino.ClientMicrosoftLibrary.SignalR.ClientMessageService.<InitHub>d__8.MoveNext() in C:\Source\Echino\Echino-branch-Vanilla\Echino.ClientMicrosoftLibrary\SignalR\ClientMessageService.cs:line 52 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\src\System\Runtime\ExceptionServices\ExceptionDispatchInfo.cs:line 63 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 186 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 154 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 125 at System.Runtime.CompilerServices.TaskAwaiter.GetResult() in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 515 at Echino.ClientMicrosoftLibrary.SignalR.ClientMessageService.<Connect>d__9.MoveNext() in C:\Source\Echino\Echino-branch-Vanilla\Echino.ClientMicrosoftLibrary\SignalR\ClientMessageService.cs:line 123 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\src\System\Runtime\ExceptionServices\ExceptionDispatchInfo.cs:line 63 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 186 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 154 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 125 at System.Runtime.CompilerServices.TaskAwaiter.GetResult() in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 515 at Echino.ClientMicrosoftUIComponents.Login.LoginController.<>c.<<OnLoaded>b__9_1>d.MoveNext() in C:\Source\Echino\Echino-branch-Vanilla\Echino.ClientMicrosoftUIComponents\Login\LoginController.xaml.cs:line 157 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\src\System\Runtime\ExceptionServices\ExceptionDispatchInfo.cs:line 63 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 186 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 154 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 125 at System.Runtime.CompilerServices.TaskAwaiter.GetResult() in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\shared\System\Runtime\CompilerServices\TaskAwaiter.cs:line 515 at Echino.ClientMicrosoftUIComponents.Login.LoginController.<OnLoaded>d__9.MoveNext() in C:\Source\Echino\Echino-branch-Vanilla\Echino.ClientMicrosoftUIComponents\Login\LoginController.xaml.cs:line 155

The last occurence of our file in the stack trace is the ClientMessageService.cs:line 52. It's the code pasted

The Min version of UWP is Windows 10 Fall Creators Update and the Target version is 1809 build 17763.

Can anyone help us resolve our issue? Feel free to ask for additional informations.

Thanks a lot

[BrennanConroy]

You might need an rd.xml file, UWP in Release might be doing some trimming and getting rid of some types/methods.

[davidfowl]

You definitely need an rd.xml file 😄

[StephaneMartignier]

Thanks to @BrennanConroy and @davidfowl for putting us in the right direction.

We had to add

<Namespace Name="Microsoft.AspNetCore.SignalR" Dynamic="Required All" Serialize="Required All" />
<Namespace Name="Microsoft.AspNetCore.SignalR.Client" Dynamic="Required All" Serialize="Required All" />
<Namespace Name="Microsoft.AspNetCore.Http.Connections.Client" Dynamic="Required All" Serialize="Required All" />
<Namespace Name="Microsoft.Extensions.Options" Dynamic="Required All" Serialize="Required All" />

to our rd.xml