Operation is not valid due to the current state of the object
- by DBa
Sometimes, when running a Mono .NET application (it seems to not depend on the input data, as it does not change), I run into following situation:
when trying to Dequeue an element from a (non-empty, I check its Count beforehand) Queue, an exception is thrown:
Unhandled Exception: System.InvalidOperationException: Operation is not valid due to the current state of the object
at System.Collections.Generic.Queue1[DBWorkItem].Peek ()[0x00000]
at System.Collections.Generic.Queue1[DBWorkItem].Dequeue () [0x00000]
at DBProcessor.process (System.Object q) [0x0006b] in <...
Though I can certainly catch this exception, the element is dequeued and lost. Has anyone else encountered this behavior, too?