<p dir="auto">run a dart app</p>
<h2 dir="auto">command</h2>
<p dir="auto">flutter run --machine --device-id=00b632821d6e1a49 lib/main.dart</p>
<h2 dir="auto">exception</h2>
<p dir="auto">FormatException: FormatException: Bad UTF-8 encoding 0xff (at offset 1126)</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="dart:isolate  _RawReceivePortImpl._handleMessage"><pre class="notranslate"><code class="notranslate">dart:isolate  _RawReceivePortImpl._handleMessage
</code></pre></div>
<h2 dir="auto">flutter doctor</h2>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="[✓] Flutter (on Linux, channel master)
    • Flutter at /home/mark/git/flutter
    • Framework revision 1457f3dbb0 (23 hours ago), 2017-03-15 10:53:22
    • Engine revision b97103b441
    • Tools Dart version 1.23.0-dev.2.0

[✓] Android toolchain - develop for Android devices (Android SDK 25.0.0)
    • Android SDK at /home/mark/Android/Sdk
    • Platform android-25, build-tools 25.0.0
    • Java binary at: /usr/bin/java
    • Java version: OpenJDK Runtime Environment (build 1.8.0_121-8u121-b13-0ubuntu1.16.04.2-b13)

[✓] Android Studio (version 2.2)
    • Android Studio at /home/mark/Programming/android-studio
    • Gradle version 2.14.1

[✓] IntelliJ IDEA Community Edition (version 2016.3)
    • Dart plugin version 163.13137
    • Flutter plugin version 0.1.11.2

[✓] Connected devices
    • Nexus 5X • 00b632821d6e1a49 • android-arm • Android 7.1.1 (API 25)"><pre class="notranslate"><code class="notranslate">[✓] Flutter (on Linux, channel master)
    • Flutter at /home/mark/git/flutter
    • Framework revision 1457f3dbb0 (23 hours ago), 2017-03-15 10:53:22
    • Engine revision b97103b441
    • Tools Dart version 1.23.0-dev.2.0

[✓] Android toolchain - develop for Android devices (Android SDK 25.0.0)
    • Android SDK at /home/mark/Android/Sdk
    • Platform android-25, build-tools 25.0.0
    • Java binary at: /usr/bin/java
    • Java version: OpenJDK Runtime Environment (build 1.8.0_121-8u121-b13-0ubuntu1.16.04.2-b13)

[✓] Android Studio (version 2.2)
    • Android Studio at /home/mark/Programming/android-studio
    • Gradle version 2.14.1

[✓] IntelliJ IDEA Community Edition (version 2016.3)
    • Dart plugin version 163.13137
    • Flutter plugin version 0.1.11.2

[✓] Connected devices
    • Nexus 5X • 00b632821d6e1a49 • android-arm • Android 7.1.1 (API 25)
</code></pre></div>
<h2 dir="auto">Steps to Reproduce</h2>
<p dir="auto">1.<code class="notranslate"> flutter drive --target=test_driver/screenshots.dart --flavor production</code></p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="result: the test executes fine, until the control flow want to execute a compute. 
expected: the compute should execute and the result should be used to continue control flow."><pre class="notranslate"><code class="notranslate">result: the test executes fine, until the control flow want to execute a compute. 
expected: the compute should execute and the result should be used to continue control flow.
</code></pre></div>
<h2 dir="auto">Logs</h2>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="± % flutter drive --target=test_driver/screenshots.dart --flavor production                                                                                                                                                                                   !4781
Using device Android SDK built for x86 64.
Starting application: test_driver/screenshots.dart
Initializing gradle...                                       0.5s
Resolving dependencies...                                    1.7s
Installing build/app/outputs/apk/app.apk...                  1.8s
Gradle task 'assembleProductionDebug'...                                                                                                                                                                                       Gradle task 'assembleProductionDebug'... Done                3.8s
Built build/app/outputs/apk/production/debug/app-production-debug.apk.
Installing build/app/outputs/apk/app.apk...                  1.6s
I/flutter (12198): Observatory listening on http://127.0.0.1:55289/
00:00 +0: scrolling performance test (setUpAll)
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:46417/
[trace] FlutterDriver: Isolate found with number: 359134432
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
[info ] FlutterDriver: Connected to Flutter application.
00:00 +0: scrolling performance test nl
...
02:14 +0 -1: scrolling performance test nl [E]
  DriverError: Error in Flutter application: Timeout while executing waitFor: TimeoutException after 0:02:00.000000: Future not completed"><pre class="notranslate"><code class="notranslate">± % flutter drive --target=test_driver/screenshots.dart --flavor production                                                                                                                                                                                   !4781
Using device Android SDK built for x86 64.
Starting application: test_driver/screenshots.dart
Initializing gradle...                                       0.5s
Resolving dependencies...                                    1.7s
Installing build/app/outputs/apk/app.apk...                  1.8s
Gradle task 'assembleProductionDebug'...                                                                                                                                                                                       Gradle task 'assembleProductionDebug'... Done                3.8s
Built build/app/outputs/apk/production/debug/app-production-debug.apk.
Installing build/app/outputs/apk/app.apk...                  1.6s
I/flutter (12198): Observatory listening on http://127.0.0.1:55289/
00:00 +0: scrolling performance test (setUpAll)
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:46417/
[trace] FlutterDriver: Isolate found with number: 359134432
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
[info ] FlutterDriver: Connected to Flutter application.
00:00 +0: scrolling performance test nl
...
02:14 +0 -1: scrolling performance test nl [E]
  DriverError: Error in Flutter application: Timeout while executing waitFor: TimeoutException after 0:02:00.000000: Future not completed
</code></pre></div>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="± % flutter doctor -v                                                                                                                                                                                                                                         !4781
[✓] Flutter (Channel beta, v0.11.9, on Linux, locale en_US.UTF-8)
    • Flutter version 0.11.9 at /home/.../Developer/flutter
    • Framework revision d48e6e433c (7 days ago), 2018-11-20 22:05:23 -0500
    • Engine revision 5c8147450d
    • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
    • Android SDK at /home/.../Android/Sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: /home/.../android-studio/jre/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
    • All Android licenses accepted.

[✓] Android Studio (version 3.2)
    • Android Studio at /home/.../android-studio
    • Flutter plugin version 30.0.1
    • Dart plugin version 181.5656
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[✓] Connected device (1 available)
    • Android SDK built for x86 64 • emulator-5554 • android-x64 • Android 6.0 (API 23) (emulator)

! Doctor found issues in 1 category."><pre class="notranslate"><code class="notranslate">± % flutter doctor -v                                                                                                                                                                                                                                         !4781
[✓] Flutter (Channel beta, v0.11.9, on Linux, locale en_US.UTF-8)
    • Flutter version 0.11.9 at /home/.../Developer/flutter
    • Framework revision d48e6e433c (7 days ago), 2018-11-20 22:05:23 -0500
    • Engine revision 5c8147450d
    • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
    • Android SDK at /home/.../Android/Sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: /home/.../android-studio/jre/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
    • All Android licenses accepted.

[✓] Android Studio (version 3.2)
    • Android Studio at /home/.../android-studio
    • Flutter plugin version 30.0.1
    • Dart plugin version 181.5656
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[✓] Connected device (1 available)
    • Android SDK built for x86 64 • emulator-5554 • android-x64 • Android 6.0 (API 23) (emulator)

! Doctor found issues in 1 category.
</code></pre></div>