firebase react native throws [ReferenceError: Property 'Proxy' doesn't exist] when I try to push on reatlitme database

Question

I'm trying to push data using react and firebase realtime database. My setup works fine for reading and updating data but it fails when I try to push.

This is the relevant section of code that fails

    try {
      const newReference = database().ref('/testUsers').push();
      console.log('Auto generated key: ', newReference.key);
    } catch (error) {
      console.log('Not able to push', error);
    }

It throws this error:

[ReferenceError: Property 'Proxy' doesn't exist]

Answer 1

I have managed to fix it. The demo project was the key ( https://github.com/mikehardy/rnfbdemo ) First I updated all my react native firebase dependencies to 12.1.0 but the bug was still present only in linux+android. Then I updated all the dependeties that ware common in my project with the demo project and that fixed my problem. I was using previously react 16.13.1.

before

  "dependencies": {
   ...
    "react": "16.13.1",
    "react-native": "0.63.4",
  
  },
  "devDependencies": {
    "@babel/core": "^7.8.4",
    "@babel/runtime": "^7.8.4",
    "@react-native-community/eslint-config": "^1.1.0",
    "babel-jest": "^25.1.0",
    "eslint": "^6.5.1",
    "jest": "^25.1.0",
    "metro-react-native-babel-preset": "^0.59.0",
    "react-test-renderer": "16.13.1"
  },

after

  "dependencies": {
    ...
    "react": "17.0.1",
    "react-native": "0.64.2",
  },
  "devDependencies": {
    "@babel/core": "^7.12.9",
    "@babel/runtime": "^7.12.5",
    "@react-native-community/eslint-config": "^2.0.0",
    "babel-jest": "^26.6.3",
    "eslint": "^7.14.0",
    "jest": "^26.6.3",
    "metro-react-native-babel-preset": "^0.64.0",
    "react-test-renderer": "17.0.1"
  },

@mikehardy Thank you so much for the help and guidance. https://github.com/invertase/react-native-firebase/issues/5503