When I build my project for the first time the build succeeds, but when I Publish the project, the build fails and I get several errors that say:
The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see the below link http://www.postsharp.net/links/nuget-restore.
What does this mean? And what can I do?
Try run Build Solution and restart visual studio. It did the job for me.