issue while running npm install --no-optional

[NagendraVummadi]

Hi Team,

Trying to execute npm install --no-optional to download node_modules package. but getting below errors. these are added as dev dependencies package.json file of oe-cloud-master repository

npm ERR! code E404
npm ERR! 404 Not Found - GET http://infynp.ad.infosys.com/repository/npm-group/oe-connector-postgresql - Not found
npm ERR! 404
npm ERR! 404 'oe-connector-postgresql@^2.0.0' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404 It was specified as a dependency of 'oe-cloud-master'
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

npm ERR! code E404
npm ERR! 404 Not Found - GET http://infynp.ad.infosys.com/repository/npm-group/oe-connector-mongodb - Not found
npm ERR! 404
npm ERR! 404 'oe-connector-mongodb@^2.0.0' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404 It was specified as a dependency of 'oe-cloud-master'
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

E404
npm ERR! 404 Not Found - GET http://infynp.ad.infosys.com/repository/npm-group/@types/node/-/node-10.17.12.tgz
npm ERR! 404
npm ERR! 404 '@types/node@^10.3.5' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404 It was specified as a dependency of 'oe-cloud-master'
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.