Bibin,
As per the support case you opened, we were able to resolve this issue:
Diagnostics:
*********************************
1. Script cannot write file when staging to Coordinator
2. Test runs fine when staged locally
3. Receiving ‘FileNotFoundException’ error
4. Gave full permissions to all users in the project home
5. The Services are started with Local System and this does not have access to write on the local computer.
6. If you start the Servers instead of the services and stage this works with no errors, since the Servers are started with your userid.
Resolution:
*********************************
Running in ITR or Quick Stage, you can reference LISA_RELATIVE_PROJ_ROOT, but if you intend to do a Stage to a remote Coordinator you will need to set to property named location defined in project.config.
If you need to run your DevTest components as Services on this machine, based on your testing, you will need to change the Log on AS to a user that can write to the local machine.