[Workmanager] Unresolved References After Flutter 3.29.0 Update #588

naneps · 2025-02-13T06:48:57Z

Issue Report

I have read the README
I have done the setup for Android
I have done the setup for iOS
I have ran the sample app and it does not work there

Version

Technology	Version
Workmanager version	0.5.2
Flutter version	3.29.0 (stable)
Xcode version	(fill this if applicable)
Swift version	(fill this if applicable)
iOS deployment target	(fill this if applicable)

Describe the error

After updating Flutter to version 3.29.0 (stable), the sample app does not work. The following errors appear when launching the app:

Launching lib\main.dart on sdk gphone64 x86 64 in debug mode...
e: file:///C:/Users/DEV_Flutter/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:14:44 Unresolved reference: shim
e: file:///C:/Users/DEV_Flutter/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:68 Unresolved reference: ShimPluginRegistry
e: file:///C:/Users/DEV_Flutter/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:35:52 Unresolved reference: PluginRegistrantCallback

It seems like there are unresolved references related to shim, ShimPluginRegistry, and PluginRegistrantCallback in the Workmanager package.

Would appreciate any guidance on how to resolve this issue.

Output of `flutter doctor -v`

[√] Flutter (Channel stable, 3.29.0, on Microsoft Windows [Version 10.0.22631.4890], locale en-US) [410ms]
    • Flutter version 3.29.0 on channel stable at C:\Users\DEV_Flutter\dev\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 35c388afb5 (2 days ago), 2025-02-10 12:48:41 -0800
    • Engine revision f73bfc4522
    • Dart version 3.7.0
    • DevTools version 2.42.2

[√] Windows Version (11 Pro 64-bit, 23H2, 2009) [1,506ms]

[√] Android toolchain - develop for Android devices (Android SDK version 35.0.1) [1,779ms]
    • Android SDK at C:\Users\DEV_Flutter\AppData\Local\Android\sdk
    • Platform android-Baklava, build-tools 35.0.1
    • Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 17.0.10+0--11572160)
    • All Android licenses accepted.

[√] Chrome - develop for the web [165ms]
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.7.6) [164ms]
    • Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
    • Visual Studio Community 2022 version 17.7.34221.43
    • Windows 10 SDK version 10.0.22621.0

[√] Android Studio (version 2024.3) [105ms]
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.10+0--11572160)

[√] IntelliJ IDEA Ultimate Edition (version 2023.3) [104ms]
    • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA 2023.3.3
    • Flutter plugin version 77.3.1
    • Dart plugin version 233.13763.5

[√] VS Code (version 1.96.4) [14ms]
    • VS Code at C:\Users\DEV_Flutter\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.104.0

[√] Connected device (4 available) [284ms]
    • sdk gphone64 x86 64 (mobile) • emulator-5554 • android-x64    • Android 15 (API 35) (emulator)
    • Windows (desktop)            • windows       • windows-x64    • Microsoft Windows [Version 10.0.22631.4890]
    • Chrome (web)                 • chrome        • web-javascript • Google Chrome 132.0.6834.160
    • Edge (web)                   • edge          • web-javascript • Microsoft Edge 133.0.3065.59

[√] Network resources [1,417ms]
    • All expected network resources are available.

• No issues found!

The text was updated successfully, but these errors were encountered:

shehan-n · 2025-02-13T17:29:24Z

I'm facing the same issue in flutter 3.29.0

large · 2025-02-13T22:36:37Z

Same here, even more errors when using the workmanager in a widget

/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:14:44 Unresolved reference 'shim'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:55 Unresolved reference 'registerWith'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:68 Unresolved reference 'ShimPluginRegistry'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:35:52 Unresolved reference 'PluginRegistrantCallback'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:38:52 Unresolved reference 'Registrar'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:49 Unresolved reference 'context'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:70 Unresolved reference 'messenger'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:41:23 Unresolved reference 'addViewDestroyListener'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:49:80 Unresolved reference 'PluginRegistrantCallback'.

Flutter 3.29.0 is pain, they removed support for the old v1 plugins. Rendring thousand of plugins to be forced updated.

danyialkhan · 2025-02-14T10:53:43Z

facing the same issue in flutter 3.29.0.

zhushenwudi · 2025-02-14T23:04:11Z

Does anyone fork and upgrade this repo to the v2 plugin version?

waffiqaziz · 2025-02-15T08:20:11Z

Same issue here my running

... Unresolved reference: shim
... Unresolved reference: ShimPluginRegistry
... Unresolved reference: PluginRegistrantCallback
... Unresolved reference: Registrar
... Unresolved reference: PluginRegistrantCallback

... Execution failed for task ':workmanager:compileDebugKotlin'.

Before the new flutter it was okay here

Muslimdeveloper1444 · 2025-02-15T10:58:52Z

facing the same issue in flutter 3.29.0.

zhushenwudi · 2025-02-15T11:03:10Z

It can be solved by directly relying on this repository, and the author has replies on other issues

workmanager:
    git:
      url: https://github.com/fluttercommunity/flutter_workmanager.git
      path: workmanager
      ref: main

large · 2025-02-15T11:58:05Z

Thank you for this simple and clever solution.
I though they published on pub.dev when they fixed things 👍

It also fixed my androidx.work:work-runtime-ktx strictly use on 2.8.1 when combined with Glance-widget.
Good fix!

zhushenwudi · 2025-02-15T19:45:20Z

Yes, I also noticed this situation and deleted the forced dependency replacement for 2.8.1

MoSaber-hub · 2025-02-18T09:43:32Z

Good.. Thank you, I think it would be a good idea to update the package in https://pub.dev/packages/workmanager so more developers could know about it!.

rahulmaindargi · 2025-02-19T19:24:06Z

Facing same issues

with latest workmanager: ^0.5.2

e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:14:44 Unresolved reference 'shim'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:55 Unresolved reference 'registerWith'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:68 Unresolved reference 'ShimPluginRegistry'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:35:52 Unresolved reference 'PluginRegistrantCallback'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:38:52 Unresolved reference 'Registrar'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:49 Unresolved reference 'context'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:70 Unresolved reference 'messenger'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:41:23 Unresolved reference 'addViewDestroyListener'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:49:80 Unresolved reference 'PluginRegistrantCallback'.

shehan-n · 2025-02-20T06:07:26Z

is it fixed in repo but not released a new version?

kunal311997 · 2025-02-20T15:11:02Z

The callbackDispatcher is not calling for me in version 3.29.0. Are others having same issue?

efica · 2025-02-21T15:16:17Z

Best solution for now

bqliang · 2025-02-23T15:11:35Z

Facing same issues 面临同样的问题

with latest workmanager: ^0.5.2与最新的workmanager: ^0.5.2

e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:14:44 Unresolved reference 'shim'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:55 Unresolved reference 'registerWith'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:68 Unresolved reference 'ShimPluginRegistry'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:35:52 Unresolved reference 'PluginRegistrantCallback'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:38:52 Unresolved reference 'Registrar'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:49 Unresolved reference 'context'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:70 Unresolved reference 'messenger'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:41:23 Unresolved reference 'addViewDestroyListener'.
e: file:///C:/Users/rahul/AppData/Local/Pub/Cache/hosted/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:49:80 Unresolved reference 'PluginRegistrantCallback'.

Same here

aliasgar4558 · 2025-02-24T06:38:33Z

++Faced - Let us know once it gets resolved & new version is available with the fix please.

Eyosi-G · 2025-02-24T18:38:33Z

Same here, even more errors when using the workmanager in a widget

/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:14:44 Unresolved reference 'shim'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:55 Unresolved reference 'registerWith'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/BackgroundWorker.kt:98:68 Unresolved reference 'ShimPluginRegistry'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:35:52 Unresolved reference 'PluginRegistrantCallback'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:38:52 Unresolved reference 'Registrar'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:49 Unresolved reference 'context'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:40:70 Unresolved reference 'messenger'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:41:23 Unresolved reference 'addViewDestroyListener'.
/pub.dev/workmanager-0.5.2/android/src/main/kotlin/dev/fluttercommunity/workmanager/WorkmanagerPlugin.kt:49:80 Unresolved reference 'PluginRegistrantCallback'.

Flutter 3.29.0 is pain, they removed support for the old v1 plugins. Rendring thousand of plugins to be forced updated.

The simplest task of running flutter default app worked after 3 days of configuration, reinstalling but now I'm facing the same issue.

wantroba · 2025-02-27T17:51:34Z

Worked for me. Waiting for the release of the new version...

FaFre · 2025-03-04T13:42:37Z

@ened @charafau please push a release to pub.dev, this is urgently needed!

salarazad · 2025-03-08T13:56:58Z

Thank you, this solved the issue, but it would be great to release this update on pub.dev as well.

Prahlad-Shaktawat · 2025-03-10T15:44:50Z

I'm facing the same issue in flutter 3.29.1

geovaniprodata · 2025-03-11T13:33:40Z

Flutter version: 3.29.1
Dart version: 3.7.0

After upgrade.

thisisprabhat · 2025-03-15T16:28:56Z

Thanks, It got fixed

Sesa1988 · 2025-03-15T16:45:08Z

Yes, probably, but what's the point? Everyone is using pub.dev for their packages, so why isn't a release happening?

BigYajuu · 2025-03-20T14:25:07Z

Yes this solution has gotten me around the Unresolved reference issue, but now my delayed periodic task just don't run callbackDispatcher() anymore. Anyone knows why??

For details, my Workmanager().registerPeriodicTask runs and seems to be registering (I have no idea but I guess it does), but the callback won't run.

geovaniprodata · 2025-03-20T14:28:15Z

Did you put

@pragma('vm:entry-point')

above the void callbackDispatcher() ?

BigYajuu · 2025-03-20T14:51:45Z

I have. Everything is in order because the callback does get invoked every now and then.

The problem is how inconsistent it is especially when it comes to periodic tasks back then. Even worse is now when I changed my pubspec, callback just won't run at all, lol, even when I set initialDelay to 1 second.

BigYajuu · 2025-03-21T04:25:00Z

I hope yall didnt take my last post as "problem solved", in fact it's the exact opposite. Upon further testing I realized that initDelay in registerPeriodicTask is completely useless. I used 3 different initDelay values - 2 min, 5 min and 7 min, and frequency value just 15 min, and the first notification always gets pushed after the frequency duration (15 min), not initDelay duration. Subsequent notifications do show up in correct frequency.

And you gotta know that this used to work before I changed my pubspec to main branch. I will raise an issue about this shortly.

zhushenwudi · 2025-03-21T14:04:41Z

The minimum cycle for android workmanager has always been 15 minutes

BigYajuu · 2025-03-24T07:08:10Z

I'm speaking of initDelay. I don't think it has anything to do with minimum cycle of periodic tasks.

But whether or not it's relevant, I'm sure that initDelay used to work perfectly before.

zhushenwudi · 2025-04-03T02:06:16Z

I have used the previous version before, but it still takes at least 15 minutes to trigger, So my expectations for this library are not very high

Manuito83 · 2025-04-03T06:47:22Z

The previous version did work (and allowed the time between updates to be lower than 15 minutes) by using exactly the same combination of several initialDelay for tasks that can be used in native Android.

The new version does not seem to work because the native WorkManager was updated. See my reply here: #594 (comment)

Whether this is something that has been changed in (native) Android or something that needs to be updated in this package when using a WorkManager higher than v2.7.1, that I don't know.

iotmehedi · 2025-04-27T11:50:14Z

simple but best solution

Sesa1988 · 2025-04-27T11:53:01Z

Is there a reason why it hasn't been released on pub.dev?

aldisa546 · 2025-05-07T09:01:57Z

Had the same issue. For a temporary solution, I've forked the repository starting from this commit: b783000 to make it compatible with Flutter 3.29 (mine was tested on 3.29.3).

workmanager:
    git:
      url: https://github.com/aldisa546/flutter_workmanager.git
      ref: upgrade/flutter-3.29

naneps added the bug Something isn't working label Feb 13, 2025

waffiqaziz mentioned this issue Feb 15, 2025

test: add more unit and widget test waffiqaziz/restaurantzz#22

Merged

TheNoumanDev mentioned this issue Feb 18, 2025

flutter 3.29 build issues solved EnsembleUI/ensemble#1875

Merged

zin- mentioned this issue Feb 22, 2025

Workmanagerの正式バージョンを参照する zin-/mem#443

Open

linsui mentioned this issue Feb 23, 2025

F-Droid build failed saber-notes/saber#1435

Closed

2 tasks

RajaShanmugamJM mentioned this issue Feb 25, 2025

Issues with FlutterBackgroundManager and latest version of Flutter (3.29.0) icapps/flutter-background-location-tracker#86

Open

waffiqaziz mentioned this issue Mar 19, 2025

Notification Scheduler Not Working on Flutter v3.29.0 waffiqaziz/restaurantzz#28

Open

2 tasks

BigYajuu mentioned this issue Mar 21, 2025

🐞Bug - initDelay in registerPeriodicTask is now useless #594

Open

4 tasks

ColinSchmale mentioned this issue Apr 11, 2025

chore: Maintenance for SDK 35 ABausG/home_widget#342

Open

2 tasks

[Workmanager] Unresolved References After Flutter 3.29.0 Update #588

[Workmanager] Unresolved References After Flutter 3.29.0 Update #588

Comments

naneps commented Feb 13, 2025

Issue Report

Version

Describe the error

Output of flutter doctor -v

shehan-n commented Feb 13, 2025

large commented Feb 13, 2025

danyialkhan commented Feb 14, 2025

zhushenwudi commented Feb 14, 2025

waffiqaziz commented Feb 15, 2025

Muslimdeveloper1444 commented Feb 15, 2025

zhushenwudi commented Feb 15, 2025 • edited Loading

large commented Feb 15, 2025

zhushenwudi commented Feb 15, 2025

MoSaber-hub commented Feb 18, 2025 • edited Loading

rahulmaindargi commented Feb 19, 2025

shehan-n commented Feb 20, 2025

kunal311997 commented Feb 20, 2025

efica commented Feb 21, 2025

bqliang commented Feb 23, 2025

aliasgar4558 commented Feb 24, 2025

Eyosi-G commented Feb 24, 2025

wantroba commented Feb 27, 2025

FaFre commented Mar 4, 2025 • edited Loading

salarazad commented Mar 8, 2025

Prahlad-Shaktawat commented Mar 10, 2025

geovaniprodata commented Mar 11, 2025

thisisprabhat commented Mar 15, 2025

Sesa1988 commented Mar 15, 2025

BigYajuu commented Mar 20, 2025

geovaniprodata commented Mar 20, 2025

BigYajuu commented Mar 20, 2025

BigYajuu commented Mar 21, 2025 • edited Loading

zhushenwudi commented Mar 21, 2025

BigYajuu commented Mar 24, 2025

zhushenwudi commented Apr 3, 2025

Manuito83 commented Apr 3, 2025

iotmehedi commented Apr 27, 2025

Sesa1988 commented Apr 27, 2025

aldisa546 commented May 7, 2025

Output of `flutter doctor -v`

zhushenwudi commented Feb 15, 2025 •

edited

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MoSaber-hub commented Feb 18, 2025 •

edited

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FaFre commented Mar 4, 2025 •

edited

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BigYajuu commented Mar 21, 2025 •

edited

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