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Home > Success Center > Archive > 2017December28 - Deletes > Cannot upgrade NPM to 11.0.1

Cannot upgrade NPM to 11.0.1

Created by Alexander Aguilar, last modified by Gerald.Prado on Dec 28, 2017

Views: 974 Votes: 0 Revisions: 6

Overview

The following error appears when upgrading NPM from 10.6 to 11.0.1:

An unexpected exception occurred during the installation / Microsoft Deployment.WindowsInstallerException.

Verify that the source exists and that you can access it.

Environment

NPM 11.6

Cause 

.net is damaged or is corrupted.

Resolution

  1. Run a Microsoft tool to uninstall/Reinstall .net (basically repaired .net).
  2. The update should work once .net is fixed.

 

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