Unexpected end of JSON input while parsing near '...on: |\n| [`@typescrip' in react bootstrap code example

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

npm cache clean --force

Example 2: npm ERR! Unexpected end of JSON input while parsing near '...r\nComment: https://o'

npm cache clean --force
npm install -g @angular/cli