This is a most likely a transient condition and may be corrected by retrying with a backoff

Question

I'm using firebase in my project and i got some issues mentioned below -

[cloud_firestore/unavailable] The service is currently unavailable. This is a most likely a transient condition and may be corrected by retrying with a backoff.

I'm using firebase lib version :

 firebase_auth: ^0.18.0+1
 google_sign_in: ^4.5.3
 cloud_firestore: ^0.14.3
 firebase_core: ^0.5.2
 firebase_messaging: ^7.0.3
 firebase_storage: ^4.0.0

flutter run --verbose - result :

     [ +208 ms] executing: [/home/loser97/Desktop/application/flutter/flutter_linux/flutter/] git -c
log.showSignature=false log -n 1 --pretty=format:%H
[ +472 ms[        ] f30b7f4db93ee747cd727df747941a28ead25ff5log -n 1 --pretty=format:%H
[   +1 ms] executing: [/home/loser97/Desktop/application/flutter/flutter_linux/flutter/] git tag --points-at HEAD
[+1208 ms] Exit code 0 from: git tag --points-at HEAD
[        ] 1.22.0-12.4.pre
           1.22.1
[  +14 ms] executing: [/home/loser97/Desktop/application/flutter/flutter_linux/flutter/] git rev-parse --abbrev-ref
--symbolic @{u}
[  +38 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] origin/stable
[        ] executing: [/home/loser97/Desktop/application/flutter/flutter_linux/flutter/] git ls-remote --get-url
origin
[   +9 ms] Exit code 0 from: git ls-remote --get-url origin
[        ] https://github.com/flutter/flutter.git
[  +83 ms] executing: [/home/loser97/Desktop/application/flutter/flutter_linux/flutter/] git rev-parse --abbrev-ref
HEAD
[   +6 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[        ] stable
[ +157 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[  +20 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +162 ms] executing: /home/loser97/Android/Sdk/platform-tools/adb devices -l
[  +52 ms] List of devices attached
[   +3 ms] Artifact Instance of 'MaterialFonts' is not required, skipping update.
[        ] Artifact Instance of 'GradleWrapper' is not required, skipping update.
[        ] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[        ] Artifact Instance of 'FlutterSdk' is not required, skipping update.
[        ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FontSubsetArtifacts' is not required, skipping update.
[ +158 ms] No supported devices connected.
[  +14 ms] "flutter run" took 502ms.
[  +28 ms] 
           #0      throwToolExit (package:flutter_tools/src/base/common.dart:14:3)
           #1      RunCommand.validateCommand (package:flutter_tools/src/commands/run.dart:353:7)
           <asynchronous suspension>
           #2      FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:933:11)
           <asynchronous suspension>
           #3      FlutterCommand.run.<anonymous closure>
(package:flutter_tools/src/runner/flutter_command.dart:836:33)
           <asynchronous suspension>
           #4      FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart)
           #5      AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:29)
           #6      _rootRun (dart:async/zone.dart:1190:13)
           #7      _CustomZone.run (dart:async/zone.dart:1093:19)
           #8      _runZoned (dart:async/zone.dart:1630:10)
           #9      runZoned (dart:async/zone.dart:1550:10)
           #10     AppContext.run (package:flutter_tools/src/base/context.dart:149:18)
           #11     FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:825:20)
           #12     CommandRunner.runCommand (package:args/command_runner.dart:197:27)
           #13     FlutterCommandRunner.runCommand.<anonymous closure>
           (package:flutter_tools/src/runner/flutter_command_runner.dart:335:21)
           #14     _rootRunUnary (dart:async/zone.dart:1198:47)
           #15     _CustomZone.runUnary (dart:async/zone.dart:1100:19)
           #16     _FutureListener.handleValue (dart:async/future_impl.dart:143:18)
           #17     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:696:45)
           #18     Future._propagateToListeners (dart:async/future_impl.dart:725:32)
           #19     Future._completeWithValue (dart:async/future_impl.dart:529:5)
           #20     _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:40:15)
           #21     _completeOnAsyncReturn (dart:async-patch/async_patch.dart:311:13)
           #22     FlutterVersion.checkFlutterVersionFreshness (package:flutter_tools/src/version.dart)
           #23     _rootRunUnary (dart:async/zone.dart:1198:47)
           #24     _CustomZone.runUnary (dart:async/zone.dart:1100:19)
           #25     _FutureListener.handleValue (dart:async/future_impl.dart:143:18)
           #26     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:696:45)
           #27     Future._propagateToListeners (dart:async/future_impl.dart:725:32)
           #28     Future._completeWithValue (dart:async/future_impl.dart:529:5)
           #29     Future._asyncCompleteWithValue.<anonymous closure> (dart:async/future_impl.dart:567:7)
           #30     _rootRun (dart:async/zone.dart:1190:13)
           #31     _CustomZone.run (dart:async/zone.dart:1093:19)
           #32     _CustomZone.runGuarded (dart:async/zone.dart:997:7)
           #33     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1037:23)
           #34     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
           #35     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
           #36     _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:118:13)
           #37     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:169:5)
           
           
[ +258 ms] ensureAnalyticsSent: 252ms
[   +3 ms] Running shutdown hooks
[        ] Shutdown hooks complete
[        ] exiting with code 1

please share your answer.

Answer 1

On emulator: wipe out emulator data then load the app. On phone: turn off the data then restart your phone then turn on the data and load the app

I solved the issue with this

Answer 2

This answer might be quite late, but whoever visits here for this error, I have few things to tell,

1. If you are operating with your features, make sure it is connected to internet for firebase operations.

2. If your module works with firebase with offline support, make sure you have the collection and all documents which are related to your module cached first. That way you can avoid this error. If offline mode included, clearly you might have enabled the persistance in firebase, if not then please go through this link.

3. If working offline and above is not working, make sure to check and verify the presence of collection/document in firebase.

4. You can also utilise the alternatives such as try...catch... and play around for fixing.

5. There might be a chance of glitch from server's end for which we cannot do much.

In majority of the case there might be some code issue from our end, You can verify it by checking other firebase calls to confirm whether it is from server side fault or not.