Getting System.ArgumentNullException when starting the Azure Function

[alrios-ms]

Hello team,

I have an Azure Function with a ServiceBusTrigger defined as follows:

[FunctionName("myfunction")] public async Task Run([ServiceBusTrigger("%mytopic%", "mysubscription", Connection = "servicebusconnectionstringname")]Message message) { // do some work }

We are reading 'mytopic' and 'servicebusconnectionstringname' from the Application Settings which are references to KeyValue secrets. 'mysubcription' is a hardcoded value.

However after deploying to Azure via Azure DevOps pipelines when the function is starting I am getting this error below:

System.ArgumentNullException: at System.Uri..ctor (System.Private.Uri, Version=4.0.6.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a) at Microsoft.Azure.ServiceBus.ServiceBusConnection.InitializeConnection (Microsoft.Azure.ServiceBus, Version=4.1.3.0, Culture=neutral, PublicKeyToken=7e34167dcc6d6d8c) at Microsoft.Azure.ServiceBus.ServiceBusConnection..ctor (Microsoft.Azure.ServiceBus, Version=4.1.3.0, Culture=neutral, PublicKeyToken=7e34167dcc6d6d8c) at Microsoft.Azure.ServiceBus.Core.MessageReceiver..ctor (Microsoft.Azure.ServiceBus, Version=4.1.3.0, Culture=neutral, PublicKeyToken=7e34167dcc6d6d8c) at Microsoft.Azure.WebJobs.ServiceBus.MessagingProvider.GetOrAddMessageReceiver (Microsoft.Azure.WebJobs.ServiceBus, Version=4.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at Microsoft.Azure.WebJobs.ServiceBus.MessagingProvider.CreateMessageProcessor (Microsoft.Azure.WebJobs.ServiceBus, Version=4.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at Microsoft.Azure.WebJobs.ServiceBus.Listeners.ServiceBusListener..ctor (Microsoft.Azure.WebJobs.ServiceBus, Version=4.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at Microsoft.Azure.WebJobs.ServiceBus.Triggers.ServiceBusTriggerAttributeBindingProvider+<>c__DisplayClass7_0.b0 (Microsoft.Azure.WebJobs.ServiceBus, Version=4.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35) at Microsoft.Azure.WebJobs.Host.Triggers.StrategyTriggerBinding`2.CreateListenerAsync (Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35:
C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Triggers\StrategyTriggerBinding.csMicrosoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: 67) at Microsoft.Azure.WebJobs.Host.Indexers.FunctionIndexer+ListenerFactory+d5.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35:
C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Indexers\FunctionIndexer.csMicrosoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: 443) 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.Listeners.HostListenerFactory+<CreateAsync>d__13.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Listeners\HostListenerFactory.csMicrosoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: 71) 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.Listeners.ListenerFactoryListener+d8.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35:
C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Listeners\ListenerFactoryListener.csMicrosoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: 45) 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.Listeners.ShutdownListener+d5.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35:
C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Listeners\ShutdownListener.csMicrosoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: 29) 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.JobHost+d21.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Microsoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\JobHost.csMicrosoft.Azure.WebJobs.Host, Version=3.0.28.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: 97)
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.Script.ScriptHost+d85.MoveNext (Microsoft.Azure.WebJobs.Script, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Script, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: D:\a\1\s\src\WebJobs.Script\Host\ScriptHost.csMicrosoft.Azure.WebJobs.Script, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 259)
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.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Extensions.Hosting.Internal.Host+d9.MoveNext (Microsoft.Extensions.Hosting, Version=3.1.13.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) 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.Script.WebHost.WebJobsScriptHostService+d48.MoveNext (Microsoft.Azure.WebJobs.Script.WebHost, Version=3.0.0.0, Culture=neutral, PublicKeyToken=nullMicrosoft.Azure.WebJobs.Script.WebHost, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: D:\a\1\s\src\WebJobs.Script.WebHost\WebJobsScriptHostService.csMicrosoft.Azure.WebJobs.Script.WebHost, Version=3.0.0.0, Culture=neutral, PublicKeyToken=null: 278)

Thanks in advance.

[alrod]

@alrios-ms are you still experiencing the issue?

[ghost]

This issue has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment.