firebase deploy --only functions = [ERR_UNSUPPORTED_ESM_URL_SCHEME]

Environment info

firebase-tools: 9.16.5

Platform: Windows 10

Node: 14.17.3

NPM: 6.14.13

Package.json Dep:

Firebase: 8.9.1 @google-cloud/functions-framework: 1.9.0 firebase-functions: 3.15.4 Typescript: 4.3.5

Steps to reproduce

1. Upgrade from node 10 to node 14 (update from commonJS to ESM).
2. Attempt to deploy.

Expected behavior

The firebase functions to be deployed.

Actual behavior

Deploy fails while running pre-deploy script:
Error [ERR_UNSUPPORTED_ESM_URL_SCHEME]: Only file and data URLs are supported by the default ESM loader. On Windows, absolute paths must be valid file:// URLs. Received protocol 'c:'

Additional info: The same is shown if I specify a single function. We had previously an issue with starting the emulators when initially updating to Node14 - this was resolved by #2994 / #3573 / #3574 (Thanks Daniel Lee!) I can start the emulators and use the functions locally.

[taeold]

I will try to get the fix merged soon so that the bug is fixed by next CLI release.

In the meantime, if anyone is willing to test out the fix (I don’t have a Windows machine), I’d appreciate it:

> git clone https://github.com/firebase/firebase-tools.git
> cd firebase-tools
> git checkout origin/dl-cf3-esm-windows-fix2 
> npm i
> npm run build
> npm link # firebase cli should now point to locally built one
# cd to your functions project
> firebase deploy --only functions

[taeold]

@PMLS3 Can you try running the latest CLI version (the change has been released for few months):

npm i -g firebase-tools