Dynamics 2012 Troubleshooting : Parameter_reportName cannot be null or empty
Error
Parameter_reportName cannot be null or empty
Troubleshooting
The reason for this issue is that the previous compile was aborted before completion.
Solution
The solution to this problem is to compile your classes.
Practical tip:
To save your time, you can compile just one class first which you are working with to see if it worked. If its good then you should compile the all classes. This solution also applies to other artifacts, if required.