SolutionPackager issue during repack: "Error occurred during execution of plugin 'RootComponentValidation': An item with the same key has already been added

Hi,

I'm new to SolutionPackager in CRM 2011 and excited to use it for our project and our team.

I was able to successfully Extract the Solution (zip) file into a folder. When I try to repack it into a zip file I found the below error:

 "Error occurred during execution of plugin 'RootComponentValidation': An item with the same key has already been added"

Approaches tried:

Found one folder for a plugin twice. So, I removed one folder which I felt is old from the version control. But it did not resolve the issue. So, I removed both folders and tried again. But the same error persists.

Any help or pointers in this regard would be greatly appreciated.

Thanks,

Manoj