Can not load the report query: 205. Errors occurred when generating the report document for the report element with ID 205. (Element ID:205)

I am using BIRT 2.6.2.
I have designed reports in eclipse and deployed in my local tomcat.It is running successfully.
But when I am trying to deploy it in linux environment..
It is giving ...
Can not load the report query: 205. Errors occurred when generating the report document for the report element with ID 205. (Element ID:205)

I have also copied mysql connector jar file in birt/WEB-INF/lib folder
I think database connection is not establishing..What is the problem?

Please help me asap.