Symptom: When you build a project in Microsoft Visual Studio 2010, you get the following error message: The “FindRibbons” task could not be loaded from the assembly Microsoft.VisualStudio.Tools.Office.BuildTasks
Solution: This issue occurs when Visual Studio 2012 and 2010 are installed on the same machine.
If you have Visual Studio 2012 and 2010 installed on the same machine, and the build fails, follow the steps below: