Hi I am getting this error when deploying my page with a ReportViewer control to our test server:

An error has occurred during report processing.
Exception has been thrown by the target of an invocation.
Object reference not set to an instance of an object.

I dont get any errors when I am debugging in Visual Studio, so I am quite confused as to why this is happening. The error only displays those 2 sentences so it is quite unhelpful. Does anyone know a wrokaround? Or why this is happening? Thanks a lot!