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I want to integrate the new Cloud Firestore to my Cloud Functions.

I updated node.js and installed the latest firebase version on my mac.

The Documentation says: 

exports.myFunctionName = functions.firestore .document('users/marie').onWrite((event) => { // ... Your code here });

should work. I just copied the code and pasted it into the index.js, like every other realtime database functions. When I deploy the function code ($firebase deploy --only functions), i get this error:

Cannot read property 'document' of undefined at Object.<anonymous> (/private/var/folders/zm/wp2415l929s472jv7kzbt3km0000gn/T/fbfn_21520Y4xqAJosBNHe/index.js:196:45) at Module._compile (module.js:570:32) at Object.Module._extensions..js (module.js:579:10) at Module.load (module.js:487:32) at tryModuleLoad (module.js:446:12)

Any suggestions/ideas on the problem?

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  • 1
    What version of firebase-functions do you have in your project? You should upgrade it to the latest, since Cloud Firestore was just released. Commented Oct 11, 2017 at 19:59
  • 1
    You probably have an old version of the SDK. Update it as described in the documentation by running npm install firebase-functions@latest --save in your project's functions directory Commented Oct 11, 2017 at 20:02
  • Already did that, but I tried again. Restarted my mac, but still the same error Commented Oct 12, 2017 at 8:13
  • 1
    I had to change my package.json to make it work. Commented Oct 12, 2017 at 9:59
  • @J.Doe. what did you change exactly? Commented Oct 12, 2017 at 10:51

5 Answers 5

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Try changing your package to:

{ "name": "functions", "description": "Cloud Functions for Firebase", "dependencies": { "firebase-admin": "~5.4.0", "firebase-functions": "^0.7.0" }, "private": true }

And run a update after that in the terminal (npm update).

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2

Just calling firebase init did it for me. (this also changed the Package.json file)

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1

I went through the process of creating a brand new project in a new folder and it got rid of the error for me.

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Alright, i tried all these things, but it didn't work out. But firebase brought out an update, now it works :)

Seems like they had some bugs with it.

Thanks for your help!

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As mentioned in firebase-documentation.

In many cases, new features and bug fixes are available only with the latest version of the Firebase CLI and firebase-functions SDK. It's a good practice to frequently update both the Firebase CLI and the SDK with these commands inside the functions folder of your Firebase project:

Always ensure you are using updated packages.

npm install firebase-functions@latest --save npm install -g firebase-tools
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