Compatibility error that occurs during Firebase Functions deployment - firebase

Question

The following error has occurred.
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: functions#undefined
npm ERR! Found: firebase-admin#undefined
npm ERR! node_modules/firebase-admin
npm ERR! firebase-admin#"^111.5.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer firebase-admin#"^10.0.0 || ^11.0.0" from firebase-functions#4.2.1
npm ERR! node_modules/firebase-functions
npm ERR! firebase-functions#"^4.2.0" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR!
npm ERR! For a full report see:
npm ERR! C:\Users\user\AppData\Local\npm-cache\_logs\2023-02-19T05_41_15_922Z-eresolve-report.txt
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\user\AppData\Local\npm-cache\_logs\2023-02-19T05_41_15_922Z-debug-0.log
After researching a solution, I was advised to use the following command, but the issue still remains unresolved.
npm install --force
npm install --legacy-peer-deps
Can anyone help me with a solution?

Answer 1

I just ran into this same issue installing dependencies for Firebase functions. What worked for me was going into the "package.json" file within the "functions" folder and changing
"firebase-admin": "^111.5.0"
to
"firebase-admin": "^11.0.0"
AFTER running firebase init functions, but before installing the dependencies with npm. Hope this helps!