TypeError: Cannot read property 'wanted' of undefined:

Question

I have been deploying functions with firebase successfully all day learning how to use it. I was trying to see what happened if I initialized another directory that deploys to t

Answer 1

Had the same issue with npm@6.12.0 and firebase-functions@3.3.0.

TypeError: Cannot read property 'wanted' of undefined
    at /usr/local/lib/node_modules/firebase-tools/lib/checkFirebaseSDKVersion.js:37:51
    at process._tickCallback (internal/process/next_tick.js:68:7)

Fixed by changing in /usr/local/lib/node_modules/firebase-tools/lib/checkFirebaseSDKVersion.js line #37.

var wanted = (output["firebase-functions"] || {}).wanted;
var latest = (output["firebase-functions"] || {}).latest;