azure-functions-host: Could not load file or assembly 'Microsoft.IdentityModel.Clients.ActiveDirectory

Investigative information

Please provide the following:

Timestamp: 2018-02-01T16:15:00.0130000Z
Function App version 2.0-beta
Function App name:
Function name(s) (as appropriate):
Invocation ID: f17310a1-65a3-4468-a706-acc511fb9449
Region: North Europe

Repro steps

Provide the steps required to reproduce the problem: I’m using Microsoft.IdentityModel.Clients.ActiveDirectory nuget package version 3.19.1 to connect authenticate to Azure Batch

The auth code is :

    public static async Task<string> GetAuthenticationTokenAsync(string tenantId, string clientId, string clientKey)
    {
        AuthenticationContext authContext = new AuthenticationContext(_AuthorityUri + tenantId);
        AuthenticationResult authResult = await authContext.AcquireTokenAsync(_BatchResourceUri, new ClientCredential(clientId, clientKey));

        return authResult.AccessToken;
    }

Exception message is :

Exception while executing function: GetTaskCounts Could not load file or assembly 'Microsoft.IdentityModel.Clients.ActiveDirectory, Version=3.19.1.3001, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Could not find or load a specific file. (Exception from HRESULT: 0x80131621) Could not load file or assembly 'Microsoft.IdentityModel.Clients.ActiveDirectory, Version=3.19.1.3001, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

Whenever this code is called there is an exception being raised with the below stack

Microsoft.Azure.WebJobs.Host.FunctionInvocationException: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__16.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 320) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<TryExecuteAsync>d__13.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 96) Inner exception System.IO.FileLoadException handled at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw: at BatchHelpers.Auth.GetAuthenticationTokenAsync (BatchHelpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null) at BatchMonitorFunctions.GetTaskCounts+<>c.<Run>b__0_0 (BatchMonitorFunctions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=nullBatchMonitorFunctions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: C:\Users\xpillons\Source\Repos\nemo\CloudCompute\BatchMonitorFunctions\GetTaskCounts.csBatchMonitorFunctions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: 23) at Microsoft.Azure.Batch.Protocol.BatchTokenProvider+<GetAuthenticationHeaderAsync>d__5.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Rest.TokenCredentials+<ProcessHttpRequestAsync>d__17.MoveNext (Microsoft.Rest.ClientRuntime, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.Protocol.JobOperations+<ListWithHttpMessagesAsync>d__14.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.Protocol.BatchRequestBase2+<ExecuteRequestWithCancellationAsync>d__42.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.Protocol.BatchRequestBase2+<ExecuteRequestAsync>d__40.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.Protocol.BatchRequestBase2+<ExecuteRequestAsync>d__40.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.ProtocolLayer+<ProcessAndExecuteBatchRequest>d__851.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.AsyncListJobsEnumerator+<GetNextBatchFromServerAsync>d__8.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.PagedEnumeratorBase1+<MoveNextAsync>d__11.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.Batch.PagedEnumeratorBase1.MoveNext (Microsoft.Azure.Batch, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at BatchHelpers.MonitorOperations+<LogAllJobsTaskCounts>d__4.MoveNext (BatchHelpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=nullBatchHelpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: C:\Users\xpillons\Source\Repos\nemo\CloudCompute\BatchHelpers\MonitorOperations.csBatchHelpers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: 34) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at BatchMonitorFunctions.GetTaskCounts+<Run>d__0.MoveNext (BatchMonitorFunctions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=nullBatchMonitorFunctions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: C:\Users\xpillons\Source\Repos\nemo\CloudCompute\BatchMonitorFunctions\GetTaskCounts.csBatchMonitorFunctions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: 37) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.VoidTaskMethodInvoker2+<InvokeAsync>d__2.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\VoidTaskMethodInvoker.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 20) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker2+<InvokeAsync>d__9.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionInvoker.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 63) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<InvokeAsync>d__24.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 583) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithWatchersAsync>d__23.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 534) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__22.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 477) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__16.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.csMicrosoft.Azure.WebJobs.Host, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 264) Inner exception System.IO.FileLoadException handled at BatchHelpers.Auth.GetAuthenticationTokenAsync: at System.Runtime.Loader.AssemblyLoadContext.LoadFromPath (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyPath (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Reflection.Assembly.LoadFrom (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Reflection.Assembly.LoadFromResolveHandler (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.AppDomain.OnAssemblyResolveEvent (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)

Expected behavior

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Actual behavior

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Known workarounds

No Workaround

Related information

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Programming language used : C# dotnetstandard 2.0
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About this issue

Original URL
State: open
Created 6 years ago
Reactions: 7
Comments: 22 (3 by maintainers)

Most upvoted comments

We are experiencing this exact same issue, for a C# compiled function targeting .NET Core (Azure Functions v2), running the function locally, with Microsoft.IdentityModel.Clients.ActiveDirectory v3.19.4

arning: Only got partial types from assembly: TokenExpiration, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
Exception message: System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
   at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)
   at System.Reflection.Assembly.GetTypes()
   at Microsoft.Azure.WebJobs.Host.Indexers.DefaultTypeLocator.FindTypes(Assembly assembly, IEnumerable`1 extensionAssemblies) in C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Indexers\DefaultTypeLocator.cs:line 120
[5/8/18 9:37:56 PM] Generating 0 job function(s)
[5/8/18 9:37:56 PM] Error indexing method 'TokenExpiration.RunAsync'
[5/8/18 9:37:56 PM] Microsoft.Azure.WebJobs.Host: Error indexing method 'TokenExpiration.RunAsync'. System.Private.CoreLib: Could not load file or assembly 'Microsoft.IdentityModel.Clients.ActiveDirectory, Version=3.19.4.11002, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Could not find or load a specific file. (Exception from HRESULT: 0x80131621). System.Private.CoreLib: Could not load file or assembly 'Microsoft.IdentityModel.Clients.ActiveDirectory, Version=3.19.4.11002, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

We had to downgrade to 3.14.0, as recommended by @phinguyenit

dotnet remove TokenExpiration package Microsoft.IdentityModel.Clients.ActiveDirectory
dotnet add TokenExpiration package Microsoft.IdentityModel.Clients.ActiveDirectory --version 3.14.0

Update: It seems that 3.16.0 is the most recent version that does not cause an issue.

dotnet add TokenExpiration package Microsoft.IdentityModel.Clients.ActiveDirectory --version 3.16.0

Starting with 3.16.1 and on, we experience this issue.

gotgenes on May 8, 2018

After running into this problem in one project but it working in another, there is something else you can try, which is “downgrading” to the full framework and the previous version of Azure Functions. To do this, change the TargetFramework in .csproj to net461 and remove the line <AzureFunctionsVersion>v2</AzureFunctionsVersion>. If you do not remove the v2 line, you will get a blunt Fatal Error when you try to run the function.

flytzen on Mar 21, 2018

It seem okay when i downgrade version of Microsoft.IdentityModel.Clients.ActiveDirectory to 3.14. Deploy it to Azure Functions and it works, maybe it’s caused by library bug.

<PackageReference Include="Microsoft.IdentityModel.Clients.ActiveDirectory" Version="3.14.0" />

andreapn1709 on Mar 20, 2018

It’s been two years & we don’t have any update?

I am facing this along with “Microsoft.Azure.Kusto.Data.NETStandard” lib. Azure function works with 3.14 but this one needs min 4.5.1. So eventually I cant call kusto from Azure function.

sanjaydebnath on Mar 20, 2020

So, turns out when you use your Azure Function for connecting against Dynamics CRM and use the XrmTooling Assemblies, you even need to set Microsoft.IdentityModel.Clients.ActiveDirectory to v2.22.302111727, as this is the version that the CRM SDK requires.

DigitalFlow on Jul 18, 2019