Solution deployment failed with the following error: “This operation uses the SharePoint Administration service (spadminV4), which could not be contacted. If the service is stopped or disabled, start it and try the operation again.”
Title
Solution deployment failed: “This operation uses the SharePoint Administration service (spadminV4Description
Resolution
Check if the SharePoint Administration service is running on ALL the SharePoint servers in the farm.
Restart the service.
As a solution, run the installation of QWP from the server that gives the error.