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"There is a problem with this Windows Installer package"
I get this error when I run the 2013 1.0 Alpha installer on one of my machines:
Product: Node.js Tools 1.0 Alpha for Visual Studio 2013 -- Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor. Action DevEnvSetup,
location: C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\devenv.exe, command: /setup