Heroku Help

[Xproassassinn]

When i deploy it in Herkou it says that the app.json's project is not a valid heroku application

[Harp3rDev]

-----> Installing dependencies
       Installing node modules
       npm ERR! cipm can only install packages when your package.json and package-lock.json or npm-shrinkwrap.json are in sync. Please update your lock file with `npm install` before continuing.
       npm ERR! 
       npm ERR! 
       npm ERR! Invalid: lock file's node-fetch@2.6.0 does not satisfy node-fetch@>=2.6.1
       npm ERR! 
       
       npm ERR! A complete log of this run can be found in:
       npm ERR!     /tmp/npmcache.ZeA0a/_logs/2020-09-28T19_25_39_110Z-debug.log
-----> Build failed

[crispyi2]

same here