Native Assets Custom Device

Steps to reproduce

Configure a Linux custom-devices entry (platform: linux-x64) and flutter config --enable-custom-devices --enable-native-assets.
Use a project whose dependency tree includes any package with a hook/build.dart that is normally only relevant on another platform — e.g. dev/integration_tests/new_gallery reproduces this directly.
flutter run -d <custom-device-id> (or flutter build bundle).

Expected results

The asset bundle builds. Code-asset hooks that emit nothing for OS.linux (like objective_c) should not block the build, and no native (CMake) compiler match is required because a custom device / bundle build has no native app build.

Actual results

Target dart_build failed: Error: Could not read compiler configurations for build hooks, expected
build/flutter_assets/linux/x64/debug/CMakeCache.txt to exist.
#0      throwToolExit (package:flutter_tools/src/base/common.dart:34:3)
#1      cCompilerConfigLinux (package:flutter_tools/src/isolated/native_assets/linux/native_assets.dart:30:5)
#2      LinuxAssetTarget.setCCompilerConfig (package:flutter_tools/src/isolated/native_assets/targets.dart:283)
#3      FlutterNativeAssetsBuildRunnerImpl.setCCompilerConfig (.../native_assets.dart:279)
#4      runFlutterSpecificHooks (.../native_assets.dart:101)
#5      DartBuild.build (.../build_system/targets/native_assets.dart:56)
...
Error: Failed to build bundle.

Flutter Doctor output

Doctor output

[!] Flutter (Channel [user-branch], 3.44.2, on Fedora Linux 43 (Workstation Edition) 7.0.10-100.fc43.x86_64, locale en_US.UTF-8) [22ms]
    ! Flutter version 3.44.2 on channel [user-branch] at /home/joel/workspace-automation/flutter
      Currently on an unknown channel. Run `flutter channel` to switch to an official channel.
      If that doesn't fix the issue, reinstall Flutter by following instructions at https://flutter.dev/setup.
    ! Upstream repository unknown source is not the same as FLUTTER_GIT_URL
    • FLUTTER_GIT_URL = https:/github.com/flutter/flutter.git
    • Framework revision c9a6c48423 (3 days ago), 2026-06-10 15:52:41 -0700
    • Engine revision 77e2e94772
    • Dart version 3.12.2
    • DevTools version 2.57.0
    • Feature flags: no-enable-web, enable-linux-desktop, no-enable-macos-desktop, no-enable-windows-desktop, no-enable-android,
      no-enable-ios, enable-custom-devices, cli-animations, enable-native-assets, enable-swift-package-manager, omit-legacy-version-file,
      enable-lldb-debugging, enable-uiscene-migration, enable-riscv64
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update
      checks and upgrades.

[✓] Linux toolchain - develop for Linux desktop [192ms]
    • clang version 18.1.8
    • cmake version 3.31.7
    • ninja version 1.12.1
    • pkg-config version 2.3.0
    • OpenGL core renderer: AMD Ryzen 9 9950X 16-Core Processor (radeonsi, raphael_mendocino, LLVM 21.1.8, DRM 3.64, 7.0.10-100.fc43.x86_64)
    • OpenGL core version: 4.6 (Core Profile) Mesa 25.3.6
    • OpenGL core shading language version: 4.60
    • OpenGL ES renderer: AMD Ryzen 9 9950X 16-Core Processor (radeonsi, raphael_mendocino, LLVM 21.1.8, DRM 3.64, 7.0.10-100.fc43.x86_64)
    • OpenGL ES version: OpenGL ES 3.2 Mesa 25.3.6
    • OpenGL ES shading language version: OpenGL ES GLSL ES 3.20
    • GL_EXT_framebuffer_blit: yes
    • GL_EXT_texture_format_BGRA8888: yes

[✓] Connected device (2 available) [30ms]
    • Linux (desktop)            • linux              • linux-x64 • Fedora Linux 43 (Workstation Edition) 7.0.10-100.fc43.x86_64
    • Toyota homescreen (mobile) • desktop-homescreen • linux-x64 • homescreen x86_64

[✓] Network resources [177ms]
    • All expected network resources are available.

! Doctor found issues in 1 category.

Workaround

flutter config --no-enable-native-assets --enable-dart-data-assets (drops code assets from the build), or seed a CMakeCache.txt at the expected path pointing at a clang toolchain.

Potential fix

thread a mustMatchAppBuild flag (already supported by the asset targets for the widget-test path) from the bundle entry point so these builds skip the app-compiler match.

This resolves it, perhaps there is a better way?
0001-flutter_tools-Don-t-require-a-native-app-compiler-ma.patch

Patch...

From 0f6eb130140f6042fdbf4a80b6fd8658ca82ab81 Mon Sep 17 00:00:00 2001
From: Joel Winarske <[email protected]>
Date: Sat, 13 Jun 2026 11:40:59 -0700
Subject: [PATCH] [flutter_tools] Don't require a native app compiler match for
 bundle-only code-asset builds

`flutter run` on a Linux custom device and `flutter build bundle` fail with
"Could not read compiler configurations for build hooks, expected
build/flutter_assets/linux/x64/debug/CMakeCache.txt to exist." whenever the
dependency tree contains a package with a code-asset hook (e.g. objective_c via
webview_flutter_wkwebview / video_player_avfoundation).

DartBuild runs the code-asset preflight (setCCompilerConfig) for every build,
which on Linux/Windows resolves the app compiler by reading CMakeCache.txt.
Asset-bundle-only builds (flutter tester, `flutter build bundle`, custom
devices) have no native CMake app build, and BundleBuilder points outputDir at
build/flutter_assets, so the lookup targets a path that can never exist and
throws -- before any hook runs. The offending package emits zero code assets on
the bundle target; it only needs to exist in package_config.json to trip the
preflight.

The asset targets already support skipping the app-compiler match
(LinuxAssetTarget.setCCompilerConfig({mustMatchAppBuild}), used by the
widget-test path). Thread that flag from the bundle entry point: BundleBuilder
sets a new define kNativeAssetsMatchAppBuild=false, DartBuild reads it into
BuildCodeAssetsOptions.matchAppBuild (defaults true, so desktop/iOS/Android are
unchanged), and runFlutterSpecificHooks forwards it to setCCompilerConfig.

Signed-off-by: Joel Winarske <[email protected]>
---
 .../flutter_tools/lib/src/build_info.dart     |  7 ++++
 .../build_system/targets/native_assets.dart   |  8 +++-
 .../flutter_tools/lib/src/bundle_builder.dart |  5 +++
 .../isolated/native_assets/native_assets.dart | 24 +++++++++--
 .../fake_native_assets_build_runner.dart      |  2 +-
 .../isolated/native_assets_test.dart          | 42 ++++++++++++++++++-
 6 files changed, 80 insertions(+), 8 deletions(-)

diff --git a/packages/flutter_tools/lib/src/build_info.dart b/packages/flutter_tools/lib/src/build_info.dart
index 29ef12f7bb8..da50a2d1fd4 100644
--- a/packages/flutter_tools/lib/src/build_info.dart
+++ b/packages/flutter_tools/lib/src/build_info.dart
@@ -1029,6 +1029,13 @@ const kExtraGenSnapshotOptions = 'ExtraGenSnapshotOptions';
 /// components.
 const kDeferredComponents = 'DeferredComponents';
 
+/// Whether the code asset toolchain must match a native (CMake) app build.
+///
+/// Defaults to true. Set to 'false' by asset-bundle-only builds (the flutter
+/// tester, `flutter build bundle`, and custom devices) which have no native
+/// CMake app build to align the code asset compiler with.
+const kNativeAssetsMatchAppBuild = 'NativeAssetsMatchAppBuild';
+
 /// Whether to strip source code information out of release builds and where to save it.
 const kSplitDebugInfo = 'SplitDebugInfo';
 
diff --git a/packages/flutter_tools/lib/src/build_system/targets/native_assets.dart b/packages/flutter_tools/lib/src/build_system/targets/native_assets.dart
index dcaa77c69a4..71b84175e92 100644
--- a/packages/flutter_tools/lib/src/build_system/targets/native_assets.dart
+++ b/packages/flutter_tools/lib/src/build_system/targets/native_assets.dart
@@ -59,7 +59,13 @@ class DartBuild extends Target {
       targetPlatform: targetPlatform,
       projectUri: projectUri,
       fileSystem: fileSystem,
-      buildCodeAssets: BuildCodeAssetsOptions(appBuildDirectory: environment.outputDir),
+      buildCodeAssets: BuildCodeAssetsOptions(
+        appBuildDirectory: environment.outputDir,
+        // Asset-bundle-only builds (flutter tester, `flutter build bundle`,
+        // custom devices) have no native CMake app build to align the code
+        // asset compiler with, so they opt out of the compiler match.
+        matchAppBuild: environment.defines[kNativeAssetsMatchAppBuild] != 'false',
+      ),
       buildDataAssets: true,
     );
     final File dartHookResultJsonFile = environment.buildDir.childFile(dartHookResultFilename);
diff --git a/packages/flutter_tools/lib/src/bundle_builder.dart b/packages/flutter_tools/lib/src/bundle_builder.dart
index e04757e4af0..8daa7d55f38 100644
--- a/packages/flutter_tools/lib/src/bundle_builder.dart
+++ b/packages/flutter_tools/lib/src/bundle_builder.dart
@@ -62,6 +62,11 @@ class BundleBuilder {
         kTargetPlatform: getNameForTargetPlatform(platform),
         kTargetFile: mainPath,
         kDeferredComponents: 'false',
+        // This path only produces the asset bundle and runs it on a separate
+        // embedder (flutter tester, custom devices, `flutter build bundle`).
+        // There is no native CMake app build here, so code asset hooks must not
+        // try to match a (non-existent) app compiler. See DartBuild.
+        kNativeAssetsMatchAppBuild: 'false',
         ...buildInfo.toBuildSystemEnvironment(),
       },
       artifacts: globals.artifacts!,
diff --git a/packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart b/packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart
index 332d0d182cb..a2e2bd207fc 100644
--- a/packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart
+++ b/packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart
@@ -46,7 +46,7 @@ enum SupportedAssetTypes { codeAssets, dataAssets }
 
 /// Hook options specific to building code assets.
 final class BuildCodeAssetsOptions {
-  const BuildCodeAssetsOptions({required this.appBuildDirectory});
+  const BuildCodeAssetsOptions({required this.appBuildDirectory, this.matchAppBuild = true});
 
   /// The build directory of the main app build, e.g. `/path/to/app/build`.
   ///
@@ -57,6 +57,18 @@ final class BuildCodeAssetsOptions {
   /// Null for hook invocations not associated with an app build (e.g. widget
   /// tests).
   final Directory? appBuildDirectory;
+
+  /// Whether the code asset toolchain must match the native app build.
+  ///
+  /// On platforms with a native CMake app build (Linux, Windows) this drives a
+  /// lookup of the app's compiler (e.g. by reading `CMakeCache.txt`). That
+  /// lookup is only valid when a native app is actually being built.
+  ///
+  /// Builds that only produce the asset bundle and run it on a separate
+  /// embedder -- the flutter tester, `flutter build bundle`, and custom devices
+  /// -- have no such CMake build, so they set this to false and let the hooks
+  /// resolve to any available compiler instead.
+  final bool matchAppBuild;
 }
 
 /// Invokes the build of all transitive Dart package hooks and prepares assets
@@ -98,7 +110,10 @@ Future<DartHooksResult> runFlutterSpecificHooks({
     // This is ugly, but sadly necessary as fetching the cCompilerConfig is async,
     // while using it in native_assets_builder is not.
     for (final CodeAssetTarget target in targets.whereType<CodeAssetTarget>()) {
-      await buildRunner.setCCompilerConfig(target);
+      await buildRunner.setCCompilerConfig(
+        target,
+        mustMatchAppBuild: buildCodeAssets!.matchAppBuild,
+      );
     }
   }
 
@@ -169,7 +184,7 @@ abstract interface class FlutterNativeAssetsBuildRunner {
     required BuildResult buildResult,
   });
 
-  Future<void> setCCompilerConfig(CodeAssetTarget target);
+  Future<void> setCCompilerConfig(CodeAssetTarget target, {bool mustMatchAppBuild = true});
 }
 
 /// Uses `package:hooks_runner` for its implementation.
@@ -276,7 +291,8 @@ class FlutterNativeAssetsBuildRunnerImpl implements FlutterNativeAssetsBuildRunn
   }
 
   @override
-  Future<void> setCCompilerConfig(CodeAssetTarget target) async => target.setCCompilerConfig();
+  Future<void> setCCompilerConfig(CodeAssetTarget target, {bool mustMatchAppBuild = true}) async =>
+      target.setCCompilerConfig(mustMatchAppBuild: mustMatchAppBuild);
 }
 
 Future<Uri> _writeNativeAssetsJson(
diff --git a/packages/flutter_tools/test/general.shard/isolated/fake_native_assets_build_runner.dart b/packages/flutter_tools/test/general.shard/isolated/fake_native_assets_build_runner.dart
index 70233135758..b90c4958d6c 100644
--- a/packages/flutter_tools/test/general.shard/isolated/fake_native_assets_build_runner.dart
+++ b/packages/flutter_tools/test/general.shard/isolated/fake_native_assets_build_runner.dart
@@ -102,7 +102,7 @@ class FakeFlutterNativeAssetsBuildRunner implements FlutterNativeAssetsBuildRunn
   CCompilerConfig? get ndkCCompilerConfigResult => null;
 
   @override
-  Future<void> setCCompilerConfig(CodeAssetTarget target) async {
+  Future<void> setCCompilerConfig(CodeAssetTarget target, {bool mustMatchAppBuild = true}) async {
     if (target is AndroidAssetTarget) {
       target.cCompilerConfigSync = ndkCCompilerConfigResult;
     } else if (target is FlutterTesterAssetTarget) {
diff --git a/packages/flutter_tools/test/general.shard/isolated/native_assets_test.dart b/packages/flutter_tools/test/general.shard/isolated/native_assets_test.dart
index 33d15914030..6bf6003554f 100644
--- a/packages/flutter_tools/test/general.shard/isolated/native_assets_test.dart
+++ b/packages/flutter_tools/test/general.shard/isolated/native_assets_test.dart
@@ -333,6 +333,42 @@ CMAKE_LINKER:FILEPATH=/usr/bin/ld.ldd
       );
 
       expect(target.didSetCCompilerConfig, isTrue);
+      expect(target.lastMustMatchAppBuild, isTrue);
+    },
+  );
+
+  testUsingContext(
+    'bundle-only linux build does not require CMakeCache.txt when matchAppBuild is false',
+    overrides: <Type, Generator>{
+      ProcessManager: () => FakeProcessManager.empty(),
+      FileSystem: () => fileSystem,
+    },
+    () async {
+      final target = _SetCCompilerConfigTarget(
+        packagesWithNativeAssetsResult: <String>['bar'],
+        buildResult: FakeFlutterNativeAssetsBuilderResult.fromAssets(),
+      );
+
+      final Directory project = fileSystem.directory(projectUri);
+      // Note: no CMakeCache.txt is created. Asset-bundle-only builds (flutter
+      // tester, `flutter build bundle`, custom devices) have no native CMake
+      // app build, so they must not require one.
+
+      await runFlutterSpecificHooks(
+        environmentDefines: {kBuildMode: 'release'},
+        targetPlatform: TargetPlatform.linux_arm64,
+        projectUri: projectUri,
+        fileSystem: fileSystem,
+        buildRunner: target,
+        buildCodeAssets: BuildCodeAssetsOptions(
+          appBuildDirectory: project.childDirectory('build/flutter_assets'),
+          matchAppBuild: false,
+        ),
+        buildDataAssets: false,
+      );
+
+      expect(target.didSetCCompilerConfig, isTrue);
+      expect(target.lastMustMatchAppBuild, isFalse);
     },
   );
 }
@@ -341,10 +377,12 @@ class _SetCCompilerConfigTarget extends FakeFlutterNativeAssetsBuildRunner {
   _SetCCompilerConfigTarget({super.buildResult, super.packagesWithNativeAssetsResult});
 
   bool didSetCCompilerConfig = false;
+  bool? lastMustMatchAppBuild;
 
   @override
-  Future<void> setCCompilerConfig(CodeAssetTarget target) async {
-    await target.setCCompilerConfig();
+  Future<void> setCCompilerConfig(CodeAssetTarget target, {bool mustMatchAppBuild = true}) async {
+    lastMustMatchAppBuild = mustMatchAppBuild;
+    await target.setCCompilerConfig(mustMatchAppBuild: mustMatchAppBuild);
     didSetCCompilerConfig = true;
   }
 }
-- 
2.54.0

@jwinarske

Hi @jwinarske , thanks for the detailed report, routing to the Linux team for further investigation.

@dcharkes

cc @dcharkes as this seems to be a native assets issue. In case it's helpful, here are the docs on custom-devices.

I was able to reproduce a similar error on a Linux machine:

Turn on custom devices:
```
flutter config --enable-custom-devices
```
Add a custom device (follow the recommended values):
```
flutter custom-devices add
```

Navigate to the new_gallery app:

cd path/to/flutter/dev/integration_tests/new_gallery

Run flutter build bundle:
```
flutter build bundle
```

Logs: flutter build bundle

~/Code/flutter/dev/integration_tests/new_gallery$ flutter build bundle
Resolving dependencies in `/usr/local/google/home/loicsharma/Code/flutter`... 
Downloading packages... 
  _fe_analyzer_shared 95.0.0 (103.0.0 available)
  adaptive_breakpoints 0.1.7 (discontinued)
  analyzer 10.1.0 (13.3.0 available)
  animations 2.1.2 (2.2.0 available)
  archive 3.6.1 (4.0.9 available)
  cli_util 0.4.2 (0.5.1 available)
  code_assets 1.0.0 (1.2.1 available)
  coverage 1.15.0 (1.15.1 available)
  dart_style 3.1.7 (3.1.9 available)
  data_assets 0.19.6 (0.20.0 available)
  device_info 2.0.3 (discontinued replaced by device_info_plus)
  gcloud 0.8.19 (0.9.0 available)
  google_fonts 6.3.3 (8.1.0 available)
  google_mobile_ads 5.1.0 (9.0.0 available)
  googleapis 14.0.0 (16.0.0 available)
  googleapis_auth 2.0.0 (2.3.2 available)
  hooks 1.0.2 (2.0.2 available)
  isolate 2.1.1 (discontinued)
  js 0.7.2 (discontinued)
  json_annotation 4.11.0 (4.12.0 available)
  matcher 0.12.19 (0.12.20 available)
  meta 1.18.0 (1.18.3 available)
  native_toolchain_c 0.17.6 (0.19.1 available)
  objective_c 9.2.3 (9.4.1 available)
  package_config 2.2.0 (3.0.0 available)
  path_provider 2.1.5 (2.1.6 available)
  path_provider_platform_interface 2.1.2 (2.1.3 available)
  pedantic 1.11.1 (discontinued replaced by lints)
  standard_message_codec 0.0.1+4 (0.0.1+5 available)
  test 1.31.0 (1.31.1 available)
  test_api 0.7.11 (0.7.12 available)
  test_core 0.6.17 (0.6.18 available)
  url_launcher_android 6.3.29 (6.3.32 available)
  url_launcher_web 2.4.2 (2.4.3 available)
  vector_math 2.2.0 (2.4.0 available)
  video_player_android 2.9.5 (2.9.6 available)
  video_player_avfoundation 2.9.4 (2.9.7 available)
  video_player_platform_interface 6.6.0 (6.7.0 available)
  vm_service 15.0.2 (15.2.0 available)
  webview_flutter 4.9.0 (4.14.0 available)
  webview_flutter_android 3.16.9 (4.13.0 available)
  webview_flutter_wkwebview 3.24.2 (3.26.0 available)
  xml 6.6.1 (7.0.1 available)
Got dependencies in `/usr/local/google/home/loicsharma/Code/flutter`!
5 packages are discontinued.
38 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
Target dart_build failed: Error: Android SDK could not be found.
#0      throwToolExit (package:flutter_tools/src/base/common.dart:34:3)
#1      cCompilerConfigAndroid (package:flutter_tools/src/isolated/native_assets/android/native_assets.dart:105:5)
#2      AndroidAssetTarget.setCCompilerConfig (package:flutter_tools/src/isolated/native_assets/targets.dart:373:35)
#3      FlutterNativeAssetsBuildRunnerImpl.setCCompilerConfig (package:flutter_tools/src/isolated/native_assets/native_assets.dart:279:75)
#4      runFlutterSpecificHooks (package:flutter_tools/src/isolated/native_assets/native_assets.dart:101:25)
<asynchronous suspension>
#5      DartBuild.build (package:flutter_tools/src/build_system/targets/native_assets.dart:56:14)
<asynchronous suspension>
#6      _BuildInstance._invokeInternal (package:flutter_tools/src/build_system/build_system.dart:937:9)
<asynchronous suspension>
#7      Future.wait.<anonymous closure> (dart:async/future.dart:546:21)
<asynchronous suspension>
#8      _BuildInstance.invokeTarget (package:flutter_tools/src/build_system/build_system.dart:875:32)
<asynchronous suspension>
#9      Future.wait.<anonymous closure> (dart:async/future.dart:546:21)
<asynchronous suspension>
#10     _BuildInstance.invokeTarget (package:flutter_tools/src/build_system/build_system.dart:875:32)
<asynchronous suspension>
#11     FlutterBuildSystem.build (package:flutter_tools/src/build_system/build_system.dart:684:16)
<asynchronous suspension>
#12     BundleBuilder.build (package:flutter_tools/src/bundle_builder.dart:78:32)
<asynchronous suspension>
#13     BuildBundleCommand.runCommand (package:flutter_tools/src/commands/build_bundle.dart:146:5)
<asynchronous suspension>
#14     FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1630:27)
<asynchronous suspension>
#15     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
<asynchronous suspension>
#16     CommandRunner.runCommand (package:args/command_runner.dart:212:13)
<asynchronous suspension>
#17     FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:496:9)
<asynchronous suspension>
#18     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
<asynchronous suspension>
#19     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:431:5)
<asynchronous suspension>
#20     FlutterCommandRunner.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:307:33)
<asynchronous suspension>
#21     run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:104:11)
<asynchronous suspension>
#22     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
<asynchronous suspension>
#23     main (package:flutter_tools/executable.dart:103:3)
<asynchronous suspension>

Failed to build bundle.

Logs: flutter build bundle --target-platform linux-x64

~/Code/flutter/dev/integration_tests/new_gallery$ flutter build bundle --target-platform linux-x64
Resolving dependencies in `/usr/local/google/home/loicsharma/Code/flutter`... 
Downloading packages... 
  _fe_analyzer_shared 95.0.0 (103.0.0 available)
  adaptive_breakpoints 0.1.7 (discontinued)
  analyzer 10.1.0 (13.3.0 available)
  animations 2.1.2 (2.2.0 available)
  archive 3.6.1 (4.0.9 available)
  cli_util 0.4.2 (0.5.1 available)
  code_assets 1.0.0 (1.2.1 available)
  coverage 1.15.0 (1.15.1 available)
  dart_style 3.1.7 (3.1.9 available)
  data_assets 0.19.6 (0.20.0 available)
  device_info 2.0.3 (discontinued replaced by device_info_plus)
  gcloud 0.8.19 (0.9.0 available)
  google_fonts 6.3.3 (8.1.0 available)
  google_mobile_ads 5.1.0 (9.0.0 available)
  googleapis 14.0.0 (16.0.0 available)
  googleapis_auth 2.0.0 (2.3.2 available)
  hooks 1.0.2 (2.0.2 available)
  isolate 2.1.1 (discontinued)
  js 0.7.2 (discontinued)
  json_annotation 4.11.0 (4.12.0 available)
  matcher 0.12.19 (0.12.20 available)
  meta 1.18.0 (1.18.3 available)
  native_toolchain_c 0.17.6 (0.19.1 available)
  objective_c 9.2.3 (9.4.1 available)
  package_config 2.2.0 (3.0.0 available)
  path_provider 2.1.5 (2.1.6 available)
  path_provider_platform_interface 2.1.2 (2.1.3 available)
  pedantic 1.11.1 (discontinued replaced by lints)
  standard_message_codec 0.0.1+4 (0.0.1+5 available)
  test 1.31.0 (1.31.1 available)
  test_api 0.7.11 (0.7.12 available)
  test_core 0.6.17 (0.6.18 available)
  url_launcher_android 6.3.29 (6.3.32 available)
  url_launcher_web 2.4.2 (2.4.3 available)
  vector_math 2.2.0 (2.4.0 available)
  video_player_android 2.9.5 (2.9.6 available)
  video_player_avfoundation 2.9.4 (2.9.7 available)
  video_player_platform_interface 6.6.0 (6.7.0 available)
  vm_service 15.0.2 (15.2.0 available)
  webview_flutter 4.9.0 (4.14.0 available)
  webview_flutter_android 3.16.9 (4.13.0 available)
  webview_flutter_wkwebview 3.24.2 (3.26.0 available)
  xml 6.6.1 (7.0.1 available)
Got dependencies in `/usr/local/google/home/loicsharma/Code/flutter`!
5 packages are discontinued.
38 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
Target dart_build failed: Error: Could not read compiler configurations for build hooks, expected
build/flutter_assets/linux/x64/debug/CMakeCache.txt to exist.
#0      throwToolExit (package:flutter_tools/src/base/common.dart:34:3)
#1      cCompilerConfigLinux (package:flutter_tools/src/isolated/native_assets/linux/native_assets.dart:30:5)
#2      LinuxAssetTarget.setCCompilerConfig (package:flutter_tools/src/isolated/native_assets/targets.dart:283:33)
#3      FlutterNativeAssetsBuildRunnerImpl.setCCompilerConfig (package:flutter_tools/src/isolated/native_assets/native_assets.dart:279:75)
#4      runFlutterSpecificHooks (package:flutter_tools/src/isolated/native_assets/native_assets.dart:101:25)
<asynchronous suspension>
#5      DartBuild.build (package:flutter_tools/src/build_system/targets/native_assets.dart:56:14)
<asynchronous suspension>
#6      _BuildInstance._invokeInternal (package:flutter_tools/src/build_system/build_system.dart:937:9)
<asynchronous suspension>
#7      Future.wait.<anonymous closure> (dart:async/future.dart:546:21)
<asynchronous suspension>
#8      _BuildInstance.invokeTarget (package:flutter_tools/src/build_system/build_system.dart:875:32)
<asynchronous suspension>
#9      Future.wait.<anonymous closure> (dart:async/future.dart:546:21)
<asynchronous suspension>
#10     _BuildInstance.invokeTarget (package:flutter_tools/src/build_system/build_system.dart:875:32)
<asynchronous suspension>
#11     FlutterBuildSystem.build (package:flutter_tools/src/build_system/build_system.dart:684:16)
<asynchronous suspension>
#12     BundleBuilder.build (package:flutter_tools/src/bundle_builder.dart:78:32)
<asynchronous suspension>
#13     BuildBundleCommand.runCommand (package:flutter_tools/src/commands/build_bundle.dart:146:5)
<asynchronous suspension>
#14     FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1630:27)
<asynchronous suspension>
#15     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
<asynchronous suspension>
#16     CommandRunner.runCommand (package:args/command_runner.dart:212:13)
<asynchronous suspension>
#17     FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:496:9)
<asynchronous suspension>
#18     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
<asynchronous suspension>
#19     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:431:5)
<asynchronous suspension>
#20     FlutterCommandRunner.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:307:33)
<asynchronous suspension>
#21     run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:104:11)
<asynchronous suspension>
#22     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
<asynchronous suspension>
#23     main (package:flutter_tools/executable.dart:103:3)
<asynchronous suspension>

Failed to build bundle.

Any update on this?

[flutter_tools] Fix native assets crash on Linux custom devices (flut…

@bkonyi

@bkonyi Are you planning a backport for the fix, as it is breaking bundle builds on stable?

@bkonyi

@bkonyi Are you planning a backport for the fix, as it is breaking bundle builds on stable?

I've created a cherry pick for this PR, so it should go out in the next hotfix release after it's approved!

[stable] [flutter_tools] Fix native assets crash on Linux custom devi…

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Native Assets Custom Device #187980

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Native Assets Custom Device #187980

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jwinarske commented on Jun 13, 2026

Workaround

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jwinarske commented on Jun 13, 2026

mbcorona commented on Jun 15, 2026

loic-sharma commented on Jun 15, 2026

jwinarske commented on Jun 20, 2026

Markus43 commented on Jul 3, 2026

bkonyi commented on Jul 8, 2026

github-actions commented on Jul 22, 2026

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