Try / Catch in coroutines causes an internal compiler error

Hey everyone,

I'm experiencing an internal compiler error when including any try/catch in a coroutine, it seems to reproduce no matter what the case.
I managed to reproduce it by simply creating a new, completely blank unity project (using Unity 5.2.2f1, and VS2010), adding a script to the main camera and adding this method to the class:

Code (csharp):

1.  
2. public System.Collections.IEnumerator TestCoroutine() {
3.     try{}
4.     catch (System.Exception e){}
5.     yield break;
6. }
7.  

This causes the console to be flooded with text, but the two important lines (I think) are these:

Code (csharp):

1.  
2. Unhandled Exception: System.ArgumentException: Trying to emit a local from a different ILGenerator.
3.  
4. Internal compiler error at Assets/dawdwd.cs(11,43):: exception caught while emitting MethodBuilder [<TestCoroutine>c__Iterator0::MoveNext]
5.  

I've searched both google and these forums and while it seems that others are experiencing the same issue, I've found no solution. I apologize if the answer is actually out there and I couldn't find it, but what I'm mainly wanting to know is: Is this a widespread issue or is it only me and a few others that are experiencing this problem?

Any help is greatly appreciated!

 

Hey. This page could be helpful.

 

Duugu, that page you linked actually really helped me. By some miracle of god Tim Tregubov's TTMonoBehaviour script manages to compile without an internal compiler error which means I can reverse engineer it to suit what I need! Thanks man, muchly appreciated.

 

Not actually try{} catch(Exception) but catch{Exception e}, trying to access exception in coroutine cause internal compiler error

 

This is the kind of bug that will get an immediate response if you file a bug report! If you just post on the forums about these things, the bug will still be around one year later!