I got this error when trying to deploy a workflow to SharePoint, after I try
— In Visual Studio, click Tools | Options
— Scroll down to the Projects and Solutions section in the left pane
— Select Build and Run in the left pane
— Under “MSBuild project build output verbosity”, set it to “Diagnostic”

The msbuider message seems showing deploy successfully.

And even the version of the workflow process has been increased. So I assume the deployment is sucessful.

Anyone has idea?