IsVisualStudio2012ProInstalled() method not found error when running an SSIS package from VS2012

Try the following steps

 

1. Open the Developer Command Prompt for VS212 as Administrator

2. execute the command cd "C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\PrivateAssemblies"

3. execute the command gacutil /if Microsoft.SqlServer.Dts.Design.dll

4. restart Visual Studio

http://stackoverflow.com/questions/24745396/isvisualstudio2012proinstalled-method-not-found-error-when-running-an-ssis-pac