Answer by Ivan Silkin for Npm install cannot find module 'semver'

Just delete (or rename) the cloned repository's version of semver folder:"gitClonedRepository/App/node_modules/semver"

and copy the "semver" folder from"C:\Program Files\nodejs\node_modules\npm\node_modules\semver"

into the application's node_modules folder.

(if you're on Windows, othervise it must be located somewhere in /usr/local/lib/node_modules).