Const SESSION_SECRET in node.js

This is what is showing in the terminal window:

iMac-Home:myapp1 franceswarburton$ npm install express --save
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN app@1.0.0 No repository field.

express@4.16.2
added 49 packages in 2.81s
iMac-Home:myapp1 franceswarburton$ npm install passport
npm WARN app@1.0.0 No repository field.

passport@0.4.0
added 3 packages in 2.012s
iMac-Home:myapp1 franceswarburton$ npm install --save handlebars
npm WARN app@1.0.0 No repository field.

handlebars@4.0.11
added 24 packages in 2.776s

It shows packages added

each one shows:

npm WARN app@1.0.0 No repository field.

Is this the issue?