Today, for the first time after installing the latest version of 2010 families, I encounter this error “Cannot start service SPUserCodeV4”. This error message comes when I tried to deploy – sandboxed solution.
Try to Google what would be the issue, I’ve found some blog here:
However, in my case it is not “Microsoft SharePoint Foundation User Code Service”. It is “Microsoft SharePoint Foundation Sandboxed Code Service” instead.
After starting the “Central Administration” > “Services” > “Microsoft SharePoint Foundation Sandboxed Code Service” everything goes to normal.
Now, I can deploy my solution from Visual Studio 2010.