ERROR - Unable to create perspective. There is no corresponding perspective extension.

Problem

"Unable to create perspective. There is no corresponding perspective extension" While running application.

Possible Causes

1. plugin.xml not exported
2. There are errors validating plugins

Possible Resolutions

1. Make sure that you have exported the project plugin.xml to the war file.
2. Go to Run Configurations -> Plug-ins and Click Validate Plug-ins. Make sure that there are no errors.