Symptoms
You may encounter the following issues after you install the Microsoft .NET Framework 4.5.1 or the Microsoft .NET Framework 4.5.2.
Issue 1
When you open or create a JavaScript file by using Microsoft Visual Studio 2012, Visual Studio may crash.
Issue 2
You may be unable to create a C++ project in Visual Studio 2012. Additionally, when you open C++ projects by using Visual Studio 2012, you may receive an error message that resembles the following:
"No exports were found that match the constraint: ContractName"
Resolution
To resolve this issue, install the Visual Studio 2012 update.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.