Lost JavaScript support in VS2015 after updating TypeScript

I've been hit by an install bug after updating to the latest TypeScript breaking JavaScript in Visual Studio.  Select Tools/Options/Text Editor and JavaScript is nowhere to be found!

 

Good thing I saw Bill Wagner's post on Facebook.  He was hit with the same issue and found a solution:

  1. Launch the Visual Studio Installer
  2. Click on Modify
  3. Deselect and select again (yes, I know) the Universal Windows App Development Tools and click on Update

The JavaScript support should come back.

However, I still had an issue, this time with the JavaScriptWebExtensionsPackage

A quick search on the InterTubes led me to this solution:

  1. Close Visual Studio Open the Users\<CurrentUser>\AppData\Local\Microsoft\VisualStudio\<version>\ folder
  2. Rename or delete the ComponentModelCache folder
  3. Restart Visual Studio

Oh well!

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