Port 4200 is already in use. Use '--port' to specify a different port.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! product@0.0.0 start: `ng serve --host 0.0.0.0 --disable-host-check`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the product@0.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:UsersMohammad AjoAppDataRoamingnpm-cache_logs2019-08-18T18_19_41_366Z-debug.log