Build Error + Creating VSTO addin for excel 2010

Question

I try to create an excel add-in using VS 2010. When I create a new project Excel 2010 Addin, and try to compile the solution. I get an error which says.

'Error  1   The "FindRibbons" task could not be loaded from the assembly            
'Microsoft.VisualStudio.Tools.Office.BuildTasks, 
'Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a.  Confirm that the   
'<UsingTask> declaration is correct, that the assembly and all its dependencies are   
'available, and that the task contains a public class that implements   
'Microsoft.Build.Framework.ITask.   DemoExcelAddIn1

I downloaded an installed the VS 2010 tools for office runtime. But I cannot locate the assembly 'Microsoft.VisualStudio.Tools.Office.BuildTasks,

How do I proceed. Could anyone help..

Answer 1

This looks like a known issue sourced from MSDN forums - you just need to update your Microsoft.VisualStudio.Tools.Office.targets file to point to version 11.0.0.0 instead of version 10.0.0.0.

Updating MSBuild Targets File

For those who encounter this problem, go to C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v10.0\OfficeTools and open the Microsoft.VisualStudio.Tools.Office.targets file.

Replace all 10.0.0.0 with 11.0.0.0.