Error: Functions did not deploy properly

Question

Functions deploy had errors. To continue deploying other features (such as database), run:

firebase deploy --except functions

Error:

Functions did not deploy properly.

Answer 1

Try running deploy with --debug. For example: firebase --debug deploy.

In my case the function looked like this:

exports.test = functions.firestore.document('chats').onCreate((snap, context) => {
   ...
});

The debug log contained the following error message:

fieldViolations=[field=event_trigger, description=Expected value chats to match regular expression [^/]+/[^/]+(/[^/]+/[^/]+)*]]

And that's when I realized that chats is not a document but a collection. I changed the path to that of the collection and everything worked fine.

EDIT:

To view more logs you can also try:

firebase functions:log

or

firebase functions:log --only <FUNCTION_NAME>

Link to documentation.

Answer 2

I had the same issue with Firestore ,my problem was that the path to the document was bad. I had a slash at the beginning and the end of the path to my document like I used to do with Firebase Realtime Database path. Hope it helps someone.

Answer 3

Just close whatever IDE you're using and then reopen it. Then on node redeploy your functions. This should resolve the issue.

Answer 4

I got this error as well, I had the problem that a dependency was missing in the package.json file.

By running firebase --debug deploy it returned an error on the user code. firebase functions:log gave then the specifics, that a package was not included.

Answer 5

I deleted yarn.lock then error goes away. I think package-lock.json and yarn.lock should not exist together.