Unexpected end of JSON input while parsing near '...n-all":"^4.1.5","pret' code example

Example 1: npm ERR! Unexpected end of JSON input while parsing near '...ty":"sha512-2GTXt3b2Q'

npm cache clean --force

Example 2: Unexpected end of JSON input while parsing near '...fcd15e632426a1be","ta'

npm cache clean --force

Example 3: Unexpected end of JSON input while parsing near

Open Windows Powershell as admin
npm cache clean --force
solved the problem for me

Alternative : You can use yarn instead
npm install -g yarn