Unable to resolve module `_stream_writable`

[sahelighosh]

Hello,

I am trying to implement chat with Firebase following your code in "ChatAppFirebaseFunctions" but after installing all required packages
"firebase-admin": "^4.1.2",
"firebase-functions": "^1.0.2",

I am getting this following issue
"Unable to resolve module _stream_writable from /Users/user/Sites/peace-with-food/app/PeaceWithFood/node_modules/firebase-admin/lib/database/database.js: Module does not exist in the module map"

Can you please suggest how can I solve this issue?

[Inventiveatsquare]

I had the same issue, delete node module folder and clear the cache then re-install npm..