npm ERR! Unexpected end of JSON input while parsing near

Question

when creating a new angular project after running npm install -g @angular/cli I am getting the following error

npm ERR! Unexpected end of JSON input while parsing near '...:"^2.1.0","ntypescrip'

npm ERR! A complete log of this run can be found in: npm ERR!
C:\Users\Suraj\AppData\Roaming\npm-cache_logs\2019-06-28T06_04_16_049Z-debug.log Package install failed, see above.

Answer 1

Try:-

As of npm@5, the npm cache self-heals from corruption issues and data extracted from the cache is guaranteed to be valid. If you want to make sure everything is consistent, use 'npm cache verify' instead. If you're sure you want to delete the entire cache, rerun this command with --force.

step 1)

$ npm cache clean --force

or

$ npm cache verify

step 2)

$ npm install -g @angular/cli@latest

or

try uninstalling and installing angular/cli

step 3)

$ npm install --save-dev @angular/cli@latest

step 4)

delete node_modules and run $ npm install

Answer 2

This solved it for me:

Open Windows Powershell as admin

npm cache clean --force

npm install -g @angular/cli