Error occurred in deployment step ‘Retract Solution’: The language-neutral solution package was not found.
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 Add-PSSnapin Microsoft.SharePoint.Powershell run following command (Replace mysolution.wsp with your solution name) (get-spsolution mysolution.wsp).Delete()