Error: functions/index.js does not exist, can't deploy Firebase Functions · Issue #631 · firebase/firebase-tools · GitHub
![v2 functions stopped working upon upgrade to v12.5.0 · Issue #6290 · firebase/firebase-tools · GitHub v2 functions stopped working upon upgrade to v12.5.0 · Issue #6290 · firebase/firebase-tools · GitHub](https://user-images.githubusercontent.com/21160900/262615434-7a3127a8-bfb1-4e91-923e-7b025ad2598a.png)
v2 functions stopped working upon upgrade to v12.5.0 · Issue #6290 · firebase/firebase-tools · GitHub
![How to Use an Express Router Within the Cloud Function Developing Environment. | by Fredric Cliver | Weekly Webtips | Medium How to Use an Express Router Within the Cloud Function Developing Environment. | by Fredric Cliver | Weekly Webtips | Medium](https://miro.medium.com/v2/resize:fit:1400/1*8xQ06BS3P4VnfHBC-3WfMA.png)
How to Use an Express Router Within the Cloud Function Developing Environment. | by Fredric Cliver | Weekly Webtips | Medium
![Improve your Cloud Function implementations using Express middleware | by Julian Wolf | Firebase Developers | Medium Improve your Cloud Function implementations using Express middleware | by Julian Wolf | Firebase Developers | Medium](https://miro.medium.com/v2/resize:fit:1200/1*AUojZwDmOjtrnU1h-OttwA.png)