One of the most exciting aspects of bringing Thunderbird Pro to life is the opportunity to build an email service from Thunderbird together with our community, giving users the control and freedom they expect without relying on third party email service providers.
Over the past few months, we've been checking in with our community through quick surveys, and the feedback is clear: people care most about Thundermail. We're listening and working to deliver what you expect as quickly as possible, focusing our resources on building a great Thundermail experience first, with Appointment and Send as power features alongside that foundation. We're also adjusting the initial price to better align with your expectations.
We'll be sending out the first wave of Early Bird Beta invites next month. If you haven't already, please join the waitlist HERE and keep an eye on your inbox. We're excited to get Thundermail into your hands and continue building it together.
Latest Thundermail Developments
Our work right now is focused on making Thundermail reliable, easy to set up, and ensuring a smooth onboarding experience with an intuitive design, both visually and functionally.
Sign-in and Setup
A new connection flow is in development that will make it much easier to add a Thundermail account to Thunderbird, including options like QR code setup and deeper integration within the app. We have also fixed a range of sign in issues, improved domain setup, and made it easier to move from account creation to actually using the service.
The account dashboard has been updated for a cleaner look, smoother onboarding, and easier access to the key details our users care about. Configuring settings like app passwords, custom domains and aliases are now front and center when you first sign in.
Infrastructure
On the infrastructure side, we're continuing to improve stability and performance. This includes completed work on upgrading Stalwart to strengthen spam detection so legitimate emails are far less likely to end up in spam, along with improvements to how we monitor the services so problems are easier to catch and less likely to affect users. Everyday actions like archiving and managing settings should feel more intuitive for users, and the web app, add-ons, and related services now work together more smoothly.
April Onward
Next up for the account experience is better alias and custom-domain handling, and even better integration between Thunderbird and the web account flow.
The dashboard is also getting another round of refinement so settings, account details, and subscription information are easier to understand at a glance.
Thundermail work continues by focusing on reliability and security, including aliases, delivery, transport security, and admin access controls.
There will also be a final layer of polish across the entire experience between the web app, add-on, and desktop flows.
Finally: Webmail is moving up our priority list. While still early, development is actively progressing and we're aiming to bring a usable experience much sooner than originally planned.
Progress on Appointment and Send
While Thundermail is our primary focus, work on other Thunderbird Pro services is continuing.
For Appointment, we've made progress on reliability and backend performance, including improvements to how calendar tasks are processed and fixes to event handling. Our priorities heading up to the release are also focused on reliability, with refinement on calendar connections, event syncing, Zoom access, and a simpler first-time setup flow.
For Send, we've made substantial visual improvement so that it feels like a more natural part of Thunderbird Pro. We've also made a number of security improvements and are continuing to evaluate infrastructure choices to ensure long term reliability. Our priorities for Send in the coming months include better encryption-key handling and clearer password-protected downloads.
What's Next
We'll begin inviting people from the waitlist into the Early Bird beta shortly. If you haven't signed up yet, now's the time. Your feedback will directly shape how Thundermail evolves.
Improvements to tabs.move() split views support: extensions can now swap tabs within a split view, and passing a list of tabs that explicitly separates split-view members will properly unsplit the view to honor the requested ordering - Bug 2016762 / Bug 2022549
Alexandre Poirot [:ochameau] improved performance of the Inspector Rules view by supporting incremental updates, making some perf test 2 times faster (#2018538)
The Tab Notes feature is now live in Firefox 149 in Firefox Labs! We have a few tweaks and fixes coming in Firefox 150 and 151, but we're mostly collecting feedback from users.
Fixed a long-standing issue where extension paths stored in extensions.json (and addonStartup.json.lz4) became incorrect after restoring a Firefox profile to a different location and causing all previously installed add-ons to fail to load - Bug 1429838
DevTools
geppy renamed some of our CSS variables to be more explicit (#1767617)
Sebastian Zartner [:sebo] move the :visited pseudo-class to element-specific section in the Inspector pseudo-class (:hov) panel (#2017985)
Ben improved the RDM "Add Custom Device" form by making sure it worked for any kind of locale (#1705177)
Nicolas Chevobbe [:nchevobbe] added a <global> node on objects which are not from the top-level debugged page (it's always visible in the browser console/browser toolbox) (#1962343)
Nicolas Chevobbe [:nchevobbe] added proper autocomplete (including things like interpolation/color space) for linear-gradient() (and repeating-linear-gradient()) (#2025761)
The main impact of this is that when changing globals in head.js files, VS Code'S ESLint reporting will see the changes when you have the test files open that use the head.js file.
New Tab Page
Irene Ni updated the Shortcuts UI to Nova, refreshing about:newtab shortcuts with the new design system and improved focus states.
The Firefox for Android app has always had a complicated build process - we're cramping a complex cross-platform browser engine and all the related components that make it work on Android into one package. In its current form, it lives in the Firefox mono-repo at mozilla-central (now mozilla-firefox using the git repository).
I wanted to document my "artifact-mode" environment here since it's worked quite successfully for me for many years with minor changes.
NOTE: After a fresh clone of the mono-repo, don't forget to first run and follow the prompts of ./mach bootstrap .
mozconfig
My mozconfig below is enabled for artifact mode, but occasionally I switch between various configurations. You can see those commented out, with these few extra notes:
I like to separate out my objdirs to avoid cache pollution between the different build types. I think you can get away without needing to specify this and an objdir for your build type and arch will be generated.
sccache speeds up the native portion of full builds after the first slow one, but it's a hit or miss if you fetch from the remote repository but don't need to rebuild as often.
I don't care to manually run the clobber step, and I don't truly appreciate why that isn't always automatically done.
# Build GeckoView/Firefox for Android:
ac_add_options --enable-application=mobile/android
# Targeting the following architecture.
# For regular phones, no --target is needed.
# For x86 emulators (and x86 devices, which are uncommon):
# ac_add_options --target=i686
# For newer phones or Apple silicon
ac_add_options --target=aarch64
# For x86_64 emulators (and x86_64 devices, which are even less common):
# ac_add_options --target=x86_64
# sccache will significantly speed up your builds by caching
# compilation results. The Firefox build system will download
# sccache automatically.
# This only works for non-artifact builds.
#ac_add_options --with-ccache=sccache
# Enable artifact builds; manager-mode.
ac_add_options --enable-artifact-builds
# Write build artifacts to..
## Full build dir
#mk_add_options MOZ_OBJDIR=./objdir-droid
#mk_add_options MOZ_OBJDIR=./objdir-desktop
## Artifact builds
mk_add_options MOZ_OBJDIR=./objdir-frontend
# Automatic clobbering; don't ask me.
mk_add_options AUTOCLOBBER=1
JAVA_HOME
Sometimes you might find yourself needing to run a (non-mach) command in the terminal. Those typically will need to invoke some parts of gradle for an Android build, so it's best to make sure those are using the same JDK as the bootstrapped one in the mono-repo. This avoids weird build errors where something that compiles in one place isn't working in another (like Android Studio).
The location for the JDKs are typically in ~/.mozbuild/jdk/, and if you've between around for ~6 months you end up with multiple versions after every JDK bump:
$ ls -l ~/.mozbuild/jdk/
drwxr-xr-x@ - jalmeida 15 Apr 2025 jdk-17.0.15+6
drwxr-xr-x@ - jalmeida 15 Jul 2025 jdk-17.0.16+8
drwxr-xr-x@ - jalmeida 21 Oct 2025 jdk-17.0.17+10
drwxr-xr-x@ - jalmeida 20 Jan 09:00 jdk-17.0.18+8
drwxr-xr-x@ - jalmeida 26 Feb 15:04 mozboot
You can find some way to point your latest JDK to one location or you can be lazy like me and pick the latest version to assign as your JAVA_HOME property by adding this to your shell's RC file:
export JAVA_HOME="$(ls -1dr -- $HOME/.mozbuild/jdk/jdk-* | head -n 1)/Contents/Home"
Android Studio
Similarly for Android Studio, let's do the same so that environment is identical. Head to, Settings | Build, Execution, Deployment | Build Tools | Gradle, and ensure that "Gradle JDK" path is set to JAVA_HOME.
Lately, the default seems to be for it to follow GRADLE_LOCAL_JAVA_HOME which is a property we can't easily override, so we have to manually set this ourselves.
Using the same Android SDK also helps speed things up and avoids source confusion. You can typically find it in ~/.mozbuild/android-sdk-macosx and update it at Settings | Languages & Frameworks | Android SDK.
Debugging
This section is for miscellaneous build error situations that come-up, but assuming mach build work and there are no known Android build changes, my solution has typically always been the same.
For example, the other day I fetched another engineers patch to test out locally1 as part of reviewing it where I faced the error message below:
Execution failed for task ':components:feature-pwa:compileDebugKotlin'.
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':components:feature-pwa:compileDebugKotlin'.
> A failure occurred while executing org.jetbrains.kotlin.compilerRunner.GradleCompilerRunnerWithWorkers$GradleKotlinCompilerWorkAction
> Internal compiler error. See log for more details
* Try:
> Run with --info or --debug option to get more log output.
> Run with --scan to generate a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':components:feature-pwa:compileDebugKotlin'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.lambda$executeIfValid$1(ExecuteActionsTaskExecuter.java:135)
at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:288)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:133)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:121)
at org.gradle.api.internal.tasks.execution.ProblemsTaskPathTrackingTaskExecuter.execute(ProblemsTaskPathTrackingTaskExecuter.java:41)
at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:74)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:209)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:166)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
at org.gradle.execution.plan.DefaultNodeExecutor.executeLocalTaskNode(DefaultNodeExecutor.java:55)
at org.gradle.execution.plan.DefaultNodeExecutor.execute(DefaultNodeExecutor.java:34)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.lambda$execute$0(DefaultTaskExecutionGraph.java:339)
at org.gradle.internal.operations.CurrentBuildOperationRef.with(CurrentBuildOperationRef.java:84)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:339)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:328)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:459)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:376)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
at org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:47)
Caused by: org.gradle.workers.internal.DefaultWorkerExecutor$WorkExecutionException: A failure occurred while executing org.jetbrains.kotlin.compilerRunner.GradleCompilerRunnerWithWorkers$GradleKotlinCompilerWorkAction
at org.gradle.workers.internal.DefaultWorkerExecutor$WorkItemExecution.waitForCompletion(DefaultWorkerExecutor.java:289)
at org.gradle.internal.work.DefaultAsyncWorkTracker.lambda$waitForItemsAndGatherFailures$2(DefaultAsyncWorkTracker.java:130)
at org.gradle.internal.Factories$1.create(Factories.java:33)
at org.gradle.internal.work.DefaultWorkerLeaseService.lambda$withoutLocks$2(DefaultWorkerLeaseService.java:344)
at org.gradle.internal.work.ResourceLockStatistics$1.measure(ResourceLockStatistics.java:42)
at org.gradle.internal.work.DefaultWorkerLeaseService.withoutLocks(DefaultWorkerLeaseService.java:342)
at org.gradle.internal.work.DefaultWorkerLeaseService.withoutLocks(DefaultWorkerLeaseService.java:326)
at org.gradle.internal.work.DefaultWorkerLeaseService.withoutLock(DefaultWorkerLeaseService.java:331)
at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForItemsAndGatherFailures(DefaultAsyncWorkTracker.java:126)
at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForItemsAndGatherFailures(DefaultAsyncWorkTracker.java:92)
at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForAll(DefaultAsyncWorkTracker.java:78)
at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForCompletion(DefaultAsyncWorkTracker.java:66)
at org.gradle.api.internal.tasks.execution.TaskExecution$3.run(TaskExecution.java:260)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:166)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:47)
at org.gradle.api.internal.tasks.execution.TaskExecution.executeAction(TaskExecution.java:237)
at org.gradle.api.internal.tasks.execution.TaskExecution.executeActions(TaskExecution.java:220)
at org.gradle.api.internal.tasks.execution.TaskExecution.executeWithPreviousOutputFiles(TaskExecution.java:203)
at org.gradle.api.internal.tasks.execution.TaskExecution.execute(TaskExecution.java:170)
at org.gradle.internal.execution.steps.ExecuteStep.executeInternal(ExecuteStep.java:105)
at org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:44)
at org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:59)
at org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:56)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:209)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:166)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:56)
at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:44)
at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:42)
at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:75)
at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:55)
at org.gradle.internal.execution.steps.PreCreateOutputParentsStep.execute(PreCreateOutputParentsStep.java:50)
at org.gradle.internal.execution.steps.PreCreateOutputParentsStep.execute(PreCreateOutputParentsStep.java:28)
at org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:68)
at org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:38)
at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:61)
at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:26)
at org.gradle.internal.execution.steps.CaptureOutputsAfterExecutionStep.execute(CaptureOutputsAfterExecutionStep.java:69)
at org.gradle.internal.execution.steps.CaptureOutputsAfterExecutionStep.execute(CaptureOutputsAfterExecutionStep.java:46)
at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:39)
at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:28)
at org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:189)
at org.gradle.internal.execution.steps.BuildCacheStep.lambda$execute$1(BuildCacheStep.java:75)
at org.gradle.internal.Either$Right.fold(Either.java:176)
at org.gradle.internal.execution.caching.CachingState.fold(CachingState.java:62)
at org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:73)
at org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:48)
at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:46)
at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:35)
at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:75)
at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$2(SkipUpToDateStep.java:53)
at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:53)
at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:35)
at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37)
at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27)
at org.gradle.internal.execution.steps.ResolveIncrementalCachingStateStep.executeDelegate(ResolveIncrementalCachingStateStep.java:49)
at org.gradle.internal.execution.steps.ResolveIncrementalCachingStateStep.executeDelegate(ResolveIncrementalCachingStateStep.java:27)
at org.gradle.internal.execution.steps.AbstractResolveCachingStateStep.execute(AbstractResolveCachingStateStep.java:71)
at org.gradle.internal.execution.steps.AbstractResolveCachingStateStep.execute(AbstractResolveCachingStateStep.java:39)
at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:64)
at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:35)
at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:62)
at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:40)
at org.gradle.internal.execution.steps.AbstractCaptureStateBeforeExecutionStep.execute(AbstractCaptureStateBeforeExecutionStep.java:76)
at org.gradle.internal.execution.steps.AbstractCaptureStateBeforeExecutionStep.execute(AbstractCaptureStateBeforeExecutionStep.java:45)
at org.gradle.internal.execution.steps.AbstractSkipEmptyWorkStep.executeWithNonEmptySources(AbstractSkipEmptyWorkStep.java:136)
at org.gradle.internal.execution.steps.AbstractSkipEmptyWorkStep.execute(AbstractSkipEmptyWorkStep.java:66)
at org.gradle.internal.execution.steps.AbstractSkipEmptyWorkStep.execute(AbstractSkipEmptyWorkStep.java:38)
at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:36)
at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:23)
at org.gradle.internal.execution.steps.HandleStaleOutputsStep.execute(HandleStaleOutputsStep.java:75)
at org.gradle.internal.execution.steps.HandleStaleOutputsStep.execute(HandleStaleOutputsStep.java:41)
at org.gradle.internal.execution.steps.AssignMutableWorkspaceStep.lambda$execute$0(AssignMutableWorkspaceStep.java:35)
at org.gradle.api.internal.tasks.execution.TaskExecution$4.withWorkspace(TaskExecution.java:297)
at org.gradle.internal.execution.steps.AssignMutableWorkspaceStep.execute(AssignMutableWorkspaceStep.java:31)
at org.gradle.internal.execution.steps.AssignMutableWorkspaceStep.execute(AssignMutableWorkspaceStep.java:22)
at org.gradle.internal.execution.steps.ChoosePipelineStep.execute(ChoosePipelineStep.java:40)
at org.gradle.internal.execution.steps.ChoosePipelineStep.execute(ChoosePipelineStep.java:23)
at org.gradle.internal.execution.steps.ExecuteWorkBuildOperationFiringStep.lambda$execute$2(ExecuteWorkBuildOperationFiringStep.java:67)
at org.gradle.internal.execution.steps.ExecuteWorkBuildOperationFiringStep.execute(ExecuteWorkBuildOperationFiringStep.java:67)
at org.gradle.internal.execution.steps.ExecuteWorkBuildOperationFiringStep.execute(ExecuteWorkBuildOperationFiringStep.java:39)
at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:46)
at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:34)
at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:44)
at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:31)
at org.gradle.internal.execution.impl.DefaultExecutionEngine$1.execute(DefaultExecutionEngine.java:64)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:132)
... 30 more
Caused by: org.jetbrains.kotlin.gradle.tasks.FailedCompilationException: Internal compiler error. See log for more details
at org.jetbrains.kotlin.gradle.tasks.TasksUtilsKt.throwExceptionIfCompilationFailed(tasksUtils.kt:22)
at org.jetbrains.kotlin.compilerRunner.GradleKotlinCompilerWork.run(GradleKotlinCompilerWork.kt:112)
at org.jetbrains.kotlin.compilerRunner.GradleCompilerRunnerWithWorkers$GradleKotlinCompilerWorkAction.execute(GradleCompilerRunnerWithWorkers.kt:75)
at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:68)
at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.create(NoIsolationWorkerFactory.java:64)
at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.create(NoIsolationWorkerFactory.java:61)
at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:100)
at org.gradle.workers.internal.NoIsolationWorkerFactory$1.lambda$execute$0(NoIsolationWorkerFactory.java:61)
at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:209)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:166)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)
at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:58)
at org.gradle.workers.internal.DefaultWorkerExecutor.lambda$submitWork$0(DefaultWorkerExecutor.java:176)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:194)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.access$700(DefaultConditionalExecutionQueue.java:127)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner$1.run(DefaultConditionalExecutionQueue.java:169)
at org.gradle.internal.Factories$1.create(Factories.java:33)
at org.gradle.internal.work.DefaultWorkerLeaseService.lambda$withLocksAcquired$0(DefaultWorkerLeaseService.java:269)
at org.gradle.internal.work.ResourceLockStatistics$1.measure(ResourceLockStatistics.java:42)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocksAcquired(DefaultWorkerLeaseService.java:267)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:259)
at org.gradle.internal.work.DefaultWorkerLeaseService.runAsWorkerThread(DefaultWorkerLeaseService.java:127)
at org.gradle.internal.work.DefaultWorkerLeaseService.runAsWorkerThread(DefaultWorkerLeaseService.java:132)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:164)
at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:133)
... 2 more
The full trace was long and didn't seem related to a code failure in the module itself. So I employed the solution, which is always the same:
./mach build
In Android Studio, File > Sync Project with Gradle Files.
Yup, that's all. Very simple and boring.
1
With Jujutsu, this is the moz-phab command I use which has made it easier to manage review patches: moz-phab patch <patch-id> --no-branch --apply-to main@origin
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