Unable to find report design

I am trying to generate report in one box VHD deployed locally . None of the reports are working (Standard reports and customized all not working). 

I am getting 2 kinds of errors in 2 environment :

1) Error executing datasets

2) in another environment - Unable to find report design and then report design name.

I am able to see reports in report server and also restarted reporting services. 

Please let me know what to do to resolve issue