Switch the Microsoft Office (Microsoft Word) 2010 addin to .NET

Hi Experts,

While trying to switch the Microsoft Office (Microsoft Word) 2010 add-in to .NET it came to an end with the error message mentioned below:

Microsoft Visual Studio

Attempted re-targeting of the project has been cancelled. The .NET

Framework version you selected is not supported by this project type.

                                                                             OK

I also adopted several others measures i. e. debug with no result but the error message:

Microsoft Office Application Add-In

The common language runtime could not be loaded by

file:///c:/users/ibuys/documents/visual studio

2012/Projects/WordAddIn1/WordAddIn1/bin/Debug/WordAddIn1.vstolvstolocal.

Contact your administrator for further assistance.

Details                                              OK

Microsoft Office Application Add-In

The common language runtime could not be loaded by

file:///c:/users/ibuys/documents/visual studio

2012/Projects/WordAddIn1/WordAddIn1/bin/Debug/WordAddIn1.vstolvstolocal.

Contact your administrator for further assistance.

If you have any idea about the error message please give me a suggestion.

Thanks in advance.