Azure service bus "send" throws Operation is not valid due to the current state of the object

Question

I'm not sure what has changed but all of a sudden I get an "InvalidOperationException - Operation is not valid due to the current state of the object". My code has definitely worked previously and I can't remember changing anything.

I'm using Microsoft.Azure.ServiceBus 4.1.3

I tried some very basic code and still get the same error:

var bus = new QueueClient("Endpoint=sb://xxx.servicebus.windows.net/;SharedAccessKeyName=Manage;SharedAccessKey=xxx", "service-event");
await bus.SendAsync(new Message(Encoding.UTF8.GetBytes("{\"test\":\"hi\"}")));

Any ideas?

Edit stacktrace:

at Microsoft.Azure.ServiceBus.Core.MessageSender.<OnSendAsync>d__58.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at Microsoft.Azure.ServiceBus.RetryPolicy.<RunOperation>d__19.MoveNext()
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.Azure.ServiceBus.RetryPolicy.<RunOperation>d__19.MoveNext()
   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.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
   at Microsoft.Azure.ServiceBus.Core.MessageSender.<SendAsync>d__45.MoveNext()
   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 TwitchEventAdapter.EventHandler.<SendEvent>d__2.MoveNext() in C:\...\EventHandler.cs:line 66

sorry I meant also the full exception (not only stacktrace) like detailed message and innerexception (if any). — krishg, Sep 06 '20 at 21:30
There is no inner exception and "Operation is not valid due to the current state of the object." is the full message I'm afraid — user3713080, Sep 06 '20 at 21:47
I am afraid I could not reproduce with the code snippet you shared trying with different scenario. I might need to look at more holistic view of your application code. Also, did you check if the queue is healthy? You can test it by sending message via some different client like [Service Bus Explorer](https://github.com/paolosalvatori/ServiceBusExplorer) — krishg, Sep 07 '20 at 14:55
I tried connecting with Service Bus Explorer and it sent/received messages just fine. I created a brand new project which has the same problem for me and pushed it here: https://github.com/Anton0123/ServiceBusErrorDemo — user3713080, Sep 07 '20 at 15:10
Solved it by changing the target framework to something other than .NET 5.0. Thank you for your help anyways @KrishnenduGhosh-MSFT — user3713080, Sep 07 '20 at 16:13
Glad about that. Yeah .net 5 is still in preview. So all the older SDKs might not be yet compatible. However if you use the newer SB SDK [Azure.Messaging.ServiceBus](https://www.nuget.org/packages/Azure.Messaging.ServiceBus) (which is also still in preview) with .net 5, you would not encounter this. — krishg, Sep 07 '20 at 16:28
it still happens in the release version of net 5 as of today — cadaov, Jul 20 '21 at 15:42

score 31 · Answer 1 · answered Oct 28 '20 at 18:57

31

If you're using .Net 5.0 RC2, then installing Microsoft.Azure.ServiceBus version 5.0.0 should solve the problem.

answered Oct 28 '20 at 18:57

Sean Kearon

10,987
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2

Works for me with .NET 6 as well. Thanks! – Jammyjamjamman Oct 04 '22 at 13:53
updated to the latest Microsoft.Azure.ServiceBus and that worked! thank you – Ricardo Rodrigues Jan 10 '23 at 09:38
1

this one solved my issue, I was using .Net6 and the Microsoft.Azure.ServiceBus was set to version 4.1.2, changing to version 5.2.0 fixed the issue. – Tholitz_Reloaded Jul 18 '23 at 20:09

score 2 · Answer 2 · answered Sep 07 '20 at 16:12

2

Changing project version from .NET 5.0 to .NET core 3.1 solved the problem.

answered Sep 07 '20 at 16:12

user3713080

399
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This comment has solved my issue. Thanks! – m1o2 Dec 24 '20 at 18:47
2

Downgrading .NET isn't really a good suggestion imho – Dan Cook Jan 21 '22 at 05:20
I would consider this temporary at best. Sometimes we are trying to upgrade and don't want to downgrade. – Justin Skiles Feb 21 '22 at 21:14

Azure service bus "send" throws Operation is not valid due to the current state of the object

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