What does npm error mean?

Question

Windows

Here is such a mistake

npm ERR! file C:\Users\Admin\Desktop\app\package.json
npm ERR! code EJSONPARSE
npm ERR! JSON.parse Failed to parse json
npm ERR! JSON.parse Unexpected string in JSON at position 143 while parsing '{
npm ERR! JSON.parse   "name": "app",
npm ERR! JSON.parse   "version": "1.0.0",'
npm ERR! JSON.parse Failed to parse package.json data.
npm ERR! JSON.parse package.json must be actual JSON, not just JavaScript.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Admin\AppData\Roaming\npm-cache\_logs\2019-08-23T12_59_31_
971Z-debug.log

After this command :
npm install --save gh-pages
Help