Emulator doesn't work with demo projects + web frameworks

[sqrrrl]

[REQUIRED] Environment info

firebase-tools:
12.5.4

Platform:
ChromeOS/linux

[REQUIRED] Test case

1. Setup with firebase init

• Select firestore, hosting, functions
• defaults for everything except hosting
  • Select use frameworks, vite, javascript

2. Run firebase emulators:start --project demo-x

So far things work OK.

3. Kill the emulator
4. cd hosting
5. npm i --save firebase
6. cd ..
7. run firebase emulators:start --project demo-x

Expected to run fine, but fails with error:

Error: could not find sites for project "demo-x"

[REQUIRED] Steps to reproduce

See above

[REQUIRED] Expected behavior

Adding firebase as a dependency to the web framework should still work with demo projects.

[REQUIRED] Actual behavior

fails with error:
Error: could not find sites for project "demo-x"

[sqrrrl]

Appears to be here:

https://github.com/firebase/firebase-tools/blob/master/src/frameworks/index.ts#L207

Since everything that follows in that block seems optional (it's all skipped if no matching site) maybe just catch/log and continue?

[sqrrrl]

Not sure if related, but also noticed that the default config is not correctly configuring functions to talk to the emulator. I'm curious if this is because it's trying to configure based on a live project where functions haven't been deployed yet? Or is that a separate issue?

[DevJoghurt]

Found the same error. It can be solved by linking an active Firebase project.
Of course it would be nice if it would work in emulator mode without an active project and the prefix for projects 'demo-'.

[phcoliveira]

This seems to be a regression. I used to have a preview script in which I simply used NODE_ENV=production firebase emulators:start. With that command, Firebase Hosting was smart enough to determine that the application should be built, instead of served. From there, Firebase Hosting itselt hosted the application.
Now I have to use firebase emulators:exec --only=auth,database 'vite build && vite preview --port 5173' for a similar effect. The main difference now is that vite is serving the application, not Firebase Hosting.

[DevJoghurt]

I have tried the latest version (13.1.0) but still get the following error:

Error: could not find sites for project "demo-x"

[leoortizz]

My apologies, #6674 fixed an issue with Vite and emulators but not this issue.