Can't debug using Sharpdevelop

I keep getting the following error when I press "Step Into" in the Macro Manager:

Cannot intercept exception. Debugged program can not be continued and properties can not be evaluated.
System.ExecutionEngineException
   at static System.Void <Module>.‫‌‍‬‮‍‌‬‪‍‎‌‏‌‍‎​‪‏‮‎‮‍‏‮(System.Object )
   at static System.Void System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx)
   at static System.Void System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx)
   at static System.Void System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state)
   at System.Void System.Threading.ThreadHelper.ThreadStart(System.Object obj)

I have to completely shut down Revit and can't debug anything. I am running Revit 2016 under Windows 10 (64bit).