We sometimes get this error when deploying SharePoint 2010 solutions from Visual Studio 2010:
Error occurred in deployment step ‘Retract Solution’: The language-neutral solution package was not found.
To resolve this error user Powershell :
- Run Powershell.
- Ensure you have Sharepoint Powershell commands enabled
For that run following command
- run following command (Replace mysolution.wsp with your solution name)