Can't install the VSIX anymore

[VioletGiraffe]

When I run the VSIX on my main working computer, I get an error:

Install Error : Microsoft.VisualStudio.ExtensionManager.MissingTargetFrameworkException: The extension 'cppcheck add-in' requires a version of the .NET Framework that is not installed.

This is a VSIX built with VS 2013. At the same time, if I open the solution in VS 2013 and launch debug, debugging works fine.

Thoughts?

[VioletGiraffe]

Same thing with VSIX built in VS 2012.

[Dmitry-Me]

Where do I get the VSIX?

[VioletGiraffe]

{SolutionDir}/CPPCheckPlugin/bin/Debug/CppcheckPlugin.vsix

Isn't VSIX the only way to install the plugin into VS, short of running debug which creates a sandbox instance? I mean, how do you even use the plugin without running its VSIX?

[Dmitry-Me]

I cannot reproduce the problem. Do you have an idea of when it appeared for the first time? Maybe there's a specific commit such that it doesn't occur before that commit?

[VioletGiraffe]

It happened between the last time I committed and today, and the problem is not with the source code - I've reverted back to where it certainly worked, and still got the same error. It's something in my environment. I just thought you might know what could cause it.

[Dmitry-Me]

Not a slightest idea.

[halex2005]

Today I decide to install VSIX v1.2.1 and I have similar problem.
I tryed to install v1.2.1, v1.2.0, v1.1.0 but every time error was same - The extension 'cppcheck add-in' requires a version of the .NET Framework that is not installed.

I think it is not source code bug, but Visual Studio. I installed Visual Studio CTP5 two weeks ago and found some problems with my OS since then like hangs on creating System Restore Point.

[VioletGiraffe]

It's definitely not a source code bug or VSIX file bug. It's a bug in our local environment.
I also have VS 2015 CTP. It's been installed for some time and worked fine, and then, at some point, I started having this trouble.

[mkurdej]

Actually the problem comes from the fact that VS 2015 CTP / RC comes with .NET 4.6 RC and so .NET 4.5 is no more seen by VSIX.
The solution is to:

1. handle both 4.5 and 4.6 [as it will be soon necessary anyway if targeting VS 2015/Win10], or
2. uninstall .NET 4.6 if possible (or uninstall Windows Update KB3033094/KB3033095).