Error in npm install

I get below when i tried to run "npm install" for a module i checke out from git.

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npm ERR! code E404
npm ERR! 404 Not Found: har-validator@5.1.2

npm ERR! A complete log of this run can be found in:

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Issue : 
with " har-validator"  in "package-lock.json" file

Solution
Delete the "package-lock.json"  and re run "npm install"