When I woke up this morning I had a vb webservice that was convinced it needed an app.manifest file. When I attempted to build the project I would receive
Error 120 Error embedding Win32 manifest: Manifest File 'c:\Development\\My Project\app.manifest' cannot be found. ProjectName.
After my Google searches turned up no love, I performed an indepth inspection of the ProjectName.vbproj file. Some how an ApplicationManifest node was added to the PropertyGroup node. After removing the <ApplicationManifest>My Project\app.manifest</ApplicationManifest> node I was once again able to build my web service project.