Broken firebase API broken since 8/26

[ishandutta2007]

I have been getting this error on my project, so suspecting some change on firebase side I created a fresh new nativescript project, fresh new firebase project with fresh new android app , adding fresh database data, still getting the same error which I have never seen before.
Essentially all firebase.instance inside nativescript-plugin-firebase plugin are null all of a sudden without any change in code from my side.

Error Message Received on terminal:

JS: Error in firebase.addValueEventListener: TypeError: Cannot read property 'child' of null
JS: ERROR Error: Uncaught (in promise): TypeError: Cannot read property 'child' of null
JS: TypeError: Cannot read property 'child' of null
JS:     at file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/nativescript-plugin-firebase/firebase.js:1456:24
JS:     at new ZoneAwarePromise (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/nativescript-angular/zone-js/dist/zone-nativescript.js:776:29)
JS:     at Object.firebase.addValueEventListener (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/nativescript-plugin-firebase/firebase.js:1444:10)
JS:     at Observable._subscribe (file:///data/data/org.nativescript.bbnsng/files/app/modules/services/firebase.service.js:23:22)
JS:     at Observable._trySubscribe (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/rxjs/Observable.js:57:25)
JS:     at Observable.subscribe (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/rxjs/Observable.js:45:27)
JS:     at Observable.ConnectableObservable.connect (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/rxjs/observable/ConnectableObservable.js:37:18)
JS:     at RefCountOperator.call (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/rxjs/observable/ConnectableObservable.js:101:49)
JS:     at Observable.subscribe (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/rxjs/Observable.js:42:22)
JS:     at ObservableStrategy.createSubscription (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/@angular/common/bundles/common.umd.js:2664:22)
JS:     at AsyncPipe._subscribe (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/@angular/common/bundles/common.umd.js:2778:45)
JS:     at AsyncPipe.transform (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/@angular/common/bundles/common.umd.js:2755:22)
JS:     at Object.eval [as updateDirectives] (ng:///HomeModule/HomeComponent.ngfactory.js:127:68)
JS:     at Object.debugUpdateDirectives [as updateDirectives] (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/@angular/core/bundles/core.umd.js:12613:21)
JS:     at checkAndUpdateView (file:///data/data/org.nativescript.bbnsng/files/app/tns_modules/@angular/core/bundles/core.umd.js:12025:14)

Steps followed:

• Create a new repo
• Create a new firebase project in firebase console
• Create an android app under that probject with Package name org.nativescript.bbnsng
• Run keytool -list -v -keystore ~/.android/bbnsng.keystore to get SHA1, update app with same
• Add some data to database and make permission rules public
• Code up the corresponsding nativescript angular app to this state https:/ishandutta2007/bb_ns_ng_main_app2
• downloaded google-services.json and add it to app/App_Resources/Android/
• Run the app.

Steps to reproduce:

git clone https:/ishandutta2007/bb_ns_ng_main_app2.git
cd bb_ns_ng_main_app2
tns run android

[EddyVerbruggen]

I think firebase.init doesn't run/complete before this runs. Can you verify that by wrapping the latter in a timeout?

[ishandutta2007]

Tried wrapping, still the same.
Actually I am neither seeing the "firebase.init done" nor "firebase.init error: " message in the logs. It's tested and reproduced on multiple developer machines with multiple android devices.
Can it be so that firebase.instance is not geting cached properly?

[prestopasto]

I'm seeing something similar here. Not getting "firebase.init done" or "firebase.init error". Weird thing is it seems to be Android only. iOS builds are working fine on the same project.

[EddyVerbruggen]

I think I know why this happens; this PR introduced a dependency on a very recent tns-core-modules version; it depends on this changeset to be present in your project.

I don't like that dependecy so I'm going to remove the profiling code. Good thing is: Google fixed a few performance issues (mostly related to init) in their latest SDK (which I'm currently upgrading this plugin to).

[ghost]

Just downloaded the latest version, problem persists for me.

BUILD SUCCESSFUL

Total time: 2 mins 9.582 secs
Project successfully built.
Installing...
Successfully installed on device with identifier 'emulator-5554'.
Successfully transferred all files.
Refreshing application...
Successfully synced application org.nativescript.jw on device emulator-5554.
Executing before-watch hook from /home/asthma/work/nativescript/joinwith/hooks/before-watch/nat
ivescript-dev-typescript.js
Found peer TypeScript 2.5.2
JS: created list view model
JS: Error in firebase.addValueEventListener: TypeError: Cannot read property 'child' of null
JS: ERROR
JS: === dump(): dumping members ===
JS: {}
JS: === dump(): dumping function and properties names ===
JS: === dump(): finished ===
JS: Created a user object

and my package.json

{
  "description": "NativeScript Application",
  "license": "SEE LICENSE IN <your-license-filename>",
  "readme": "NativeScript Application",
  "repository": "<fill-your-repository-here>",
  "nativescript": {
    "id": "org.nativescript.jw",
    "tns-ios": {
      "version": "3.1.0"
    },
    "tns-android": {
      "version": "3.1.1"
    }
  },
  "dependencies": {
    "nativescript-fonticon": "^1.1.1",
    "nativescript-geolocation": "^3.0.0",
    "nativescript-imagepicker": "^3.0.2",
    "nativescript-mapbox": "^3.0.1",
    "nativescript-oauth": "^2.0.1",
    "nativescript-plugin-firebase": "^4.1.0",
    "nativescript-telerik-ui": "^3.0.4",
    "nativescript-theme-core": "^1.0.4",
    "tns-core-modules": "^3.1.0",
    "tns-platform-declarations": "^3.1.0"
  },
  "devDependencies": {
    "babel-traverse": "6.26.0",
    "babel-types": "6.26.0",
    "babylon": "6.18.0",
    "eslint": "^4.6.1",
    "eslint-config-standard": "^10.2.1",
    "eslint-plugin-promise": "^3.5.0",
    "eslint-plugin-standard": "^3.0.1",
    "lazy": "1.0.11",
    "nativescript-dev-android-snapshot": "^0.*.*",
    "nativescript-dev-typescript": "^0.5.0",
    "typescript": "^2.4.2"
  }
}

[EddyVerbruggen]

@ivegotasthma Please try the demo app. If you can reproduce it there then I'll take a look.

[eddysen]

Hello having the same issue even after i upgrade the plugin with npm just yesterday. Here is my scenario. I'm trying to merge two projects :
1 - template-tab-navigation-ng
2 - template-drawer-navigation-ng

the second is built on nativescript-plugin-firebase, they both work standalone but as soon as i merge them i'm getting this problem :

JS: Angular is running in the development mode. Call enableProdMode() to enable the production mode.

JS: Error in firebase.addValueEventListener: TypeError: Cannot read property 'child' of null

JS: ERROR Error: Uncaught (in promise): TypeError: Cannot read property 'child' of null

JS: TypeError: Cannot read property 'child' of null

---

I can add you temporarily to the repository of the project on bitbucket so that you can have a look ...

[EddyVerbruggen]

@eddysen If you can reproduce the issue on the demo app then I'll gladly take a look!

[anuragd7]

Experiencing this issue on Android only since upgrading to tns 3.4.0

[anuragd7]

Hi @eddysen , @ishandutta2007 , @ivegotasthma, @prestopasto
Did any of you manage to solve this issue. I am getting the same issue after upgrading my app to tns 3.4 and with plugin version 5.0.5
Any pointers will be most helpful. Thanks