My app works perfectly on the Android emulator. When I create a release APK I get this error:
Intermittently, the Scaffold content does not load. The Nav bar and drawer are visible, but not the central content.
This does not happen every time I open the app, only about 1/3 times, on average. There is no obvious pattern to this working or failing.
[✓] Flutter (Channel stable, v1.12.13+hotfix.7, on Mac OS X 10.11.6 15G22010,
locale en)
• Flutter version 1.12.13+hotfix.7 at /Applications/flutter
• Framework revision 9f5ff2306b (3 days ago), 2020-01-26 22:38:26 -0800
• Engine revision a67792536c
• Dart version 2.7.0
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at /Users/dan/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling
support)
• Platform android-28, build-tools 28.0.3
• Java binary at: /Applications/Android
Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build
1.8.0_202-release-1483-b49-5587405)
• All Android licenses accepted.
[✗] Xcode - develop for iOS and macOS
✗ Xcode installation is incomplete; a full installation is necessary for iOS
development.
Download at: https://developer.apple.com/xcode/download/
Or install Xcode via the App Store.
Once installed, run:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -runFirstLaunch
✗ CocoaPods not installed.
CocoaPods is used to retrieve the iOS and macOS platform side's plugin
code that responds to your plugin usage on the Dart side.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/platform-plugins
To install:
sudo gem install cocoapods
[✓] Android Studio (version 3.5)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 42.1.1
• Dart plugin version 191.8593
• Java version OpenJDK Runtime Environment (build
1.8.0_202-release-1483-b49-5587405)
[✓] VS Code (version 1.41.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.7.1
[✓] Connected device (1 available)
• klte • 5d3f96b0 • android-arm • Android 7.1.2 (API 25)
I have a similar case, the scaffold is not drawn, it is as if it were empty, for the moment the solution I found was to generate the apk but in debug mode, change flutter build apk --release to flutter build --debug .
Related
I am having an issue testing a release build on my device. If I use the app using flutter run or flutter run --release, the app runs with no errors reported and I can use the app without issue. However, using the generated APK from flutter build apk, the app crashes immediately stating the app failed to launch.
I have followed everything from here https://flutter.dev/docs/deployment/android#building-the-app-for-release so that shouldn't be the issue.
How do I begin to debug this issue?
This is the output from Flutter Doctor -v
[✓] Flutter (Channel stable, 1.20.4, on Mac OS X 10.15.7 19H2, locale en-GB)
• Flutter version 1.20.4 at /Users/student/flutter
• Framework revision fba99f6cf9 (3 weeks ago), 2020-09-14 15:32:52 -0700
• Engine revision d1bc06f032
• Dart version 2.9.2
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at /Users/student/Library/Android/sdk
• Platform android-29, build-tools 29.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 12.0.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 12.0.1, Build version 12A7300
• CocoaPods version 1.9.1
[✓] Android Studio (version 4.0)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 49.0.2
• Dart plugin version 193.7547
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
[✓] VS Code (version 1.49.3)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.15.0
With release mode. You can debug what's going on with https://fbflipper.com. Just download Flipper tool, install and run it and watch the logs.
Anyway, you can consider my points about android crash:
Wrong arch: check architecture supported between apk and device
Check broken in native libraries or class not found: Some libraries broken reference in release with ProGuard
Manifest broken: Some thing kind of missing or incorrect in configuration of manifest file
I'm trying to build a flutter web app. Everything works fine while developing locally on Windows 10, but when I build and deploy the app, it only works in my desktop Chrome browser. Accessing it from Android or iOS browsers gives a white screen.
Run flutter channel master.
Run flutter upgrade.
Run flutter config --enable-web.
Run flutter create mywebapp.
Run cd webapp.
Run flutter build web.
Deploy to server or host locally (e.g. cd build\web and `http-server).
Connect to server from browser on mobile device (Android/iOS).
Am I doing something wrong, or is flutter just broken?
flutter doctor -v output:
[√] Flutter (Channel master, 1.19.0-4.0.pre.67, on Microsoft Windows [Version 10.0.18362.836], locale en-CA)
• Flutter version 1.19.0-4.0.pre.67 at C:\_code\sdks\flutter
• Framework revision f2320c3b7a (14 hours ago), 2020-06-04 14:45:17 -0700
• Engine revision 859d892f1f
• Dart version 2.9.0 (build 2.9.0-13.0.dev 54adfeb93f)
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at C:\_code\sdks\android
• Platform android-29, build-tools 29.0.3
• ANDROID_HOME = C:\_code\sdks\android
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 44.0.2
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
[√] VS Code (version 1.45.1)
• VS Code at C:\Users\Brent\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.11.0
[√] Connected device (2 available)
• Web Server • web-server • web-javascript • Flutter Tools
• Chrome • chrome • web-javascript • Google Chrome 83.0.4103.97
• No issues found!
Switching to beta channel resolved the issue. After switching back to master, the issue did not return.
I also cleaned my flutter installation, but it didn't seem to have any problems, so not sure if that had any effect:
git clean -xfd
git pull
flutter doctor
Try changing master channel to dev:
flutter channel dev
flutter upgrade
flutter run -d chrome
// or flutter run -d chrome --release
since I upgraded my MacBook to macOS Catalina. I'm getting permanent the message ("ideviceinfo" could not be open, because the developer is not verified) despite I disabled the "spctl". can somebody help please?
I downloaded the flutter version flutter_macos_v1.9.1+hotfix.4-stable.zip AND i use the Andriod Studio 3.5.1.
[✓] Flutter (Channel stable, v1.9.1+hotfix.4, on Mac OS X 10.15 19A583, locale de-DE)
• Flutter version 1.9.1+hotfix.4 at /Users/yousefmosa/0/prg/flutter
• Framework revision cc949a8e8b (2 weeks ago), 2019-09-27 15:04:59 -0700
• Engine revision b863200c37
• Dart version 2.5.0
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /Users/yousefmosa/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[!] Xcode - develop for iOS and macOS (Xcode 11.0)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.0, Build version 11A420a
✗ CocoaPods not installed.
CocoaPods is used to retrieve the iOS and macOS platform side's plugin code that responds to your plugin usage on the Dart side.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/platform-plugins
To install:
sudo gem install cocoapods
pod setup
[✓] Android Studio (version 3.5)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 40.1.2
• Dart plugin version 191.8423
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
[✓] IntelliJ IDEA Community Edition (version 2019.1.3)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• Flutter plugin version 37.0.3
• Dart plugin version 191.7830
[✓] VS Code (version 1.37.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.3.0
[✓] Connected device (1 available)
• iPhone 11 Pro Max • XXX-6B2F-XXX-9B01-XXXXXX • ios • com.apple.CoreSimulator.SimRuntime.iOS-13-0 (simulator)
! Doctor found issues in 2 categories.
From macOS "System Preferences..." > "Security & Privacy" > "General" tab ,
you see the dart entry. Just press "Allow Anyway"
Go to System preferences -> General and allow "dart" to run
Type these command in terminal
sudo xattr -d com.apple.quarantine YourflutterSDKLocation/bin/cache/artifacts/libimobiledevice/ideviceinfo
This is because of recent changes in macOS Catalina.
sudo spctl --add "Path_to_flutter/bin/cache/artifacts/libimobiledevice/ideviceinfo"
You might need to reboot the system in order to apply the changes.
You can run a GateKeeper script to fix the issue.
I have published an article with more information how to fix this.
I used flutter to make a small app, I publish it on the play store. Problem is, I can't install on any avd I have. I get the "your device is not compatible with this version" (or a similar message depending on the android version I tried with).
I just followed the instructions on how to make an apk and an app bundle (they both didn't work). How can I make it downloadable and usable in an play store enabled avd ?
Here is a flutter doctor -v
[✓] Flutter (Channel stable, v1.5.4-hotfix.2, on Mac OS X 10.14.5 18F132, locale
fr-FR)
• Flutter version 1.5.4-hotfix.2 at /Users/moo/development/flutter
• Framework revision 7a4c33425d (6 weeks ago), 2019-04-29 11:05:24 -0700
• Engine revision 52c7a1e849
• Dart version 2.3.0 (build 2.3.0-dev.0.5 a1668566e5)
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at /Users/moo/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling
support)
• Platform android-28, build-tools 28.0.3
• Java binary at: /Applications/Android
Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build
1.8.0_152-release-1343-b01)
• All Android licenses accepted.
[✓] iOS toolchain - develop for iOS devices (Xcode 10.2.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 10.2.1, Build version 10E1001
• ios-deploy 1.9.4
• CocoaPods version 1.7.1
[✓] Android Studio (version 3.4)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 36.0.1
• Dart plugin version 183.6270
• Java version OpenJDK Runtime Environment (build
1.8.0_152-release-1343-b01)
[✓] VS Code (version 1.35.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.1.0
[✓] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 7.0 (API
24) (emulator)
You can't install an apk from the store written in flutter on the emulator because the ABI of the emulator is x86, and the apk in release mode(the mode that is on the store) can't be installed on devices with x86 ABI.
You can't even run the application in release mode on the emulator
Is anyone having any issues on Android with the flutter update on August 1st? I updated yesterday and ever since I have not been able to run on Android emulators while iOS is fine. I get the error:
[ERROR:flutter/shell/gpu/gpu_surface_gl.cc(161)] Could not wrap onscreen surface.
flutter doctor results below:
[✓] Flutter (on Mac OS X 10.12.5 16F73, locale en-US, channel alpha)
• Flutter at /Users/kyles/flutter
• Framework revision bbcfb8d51a (3 days ago), 2017-08-01 14:50:29 -0700
• Engine revision f2af347363
• Tools Dart version 1.25.0-dev.7.0
[✓] Android toolchain - develop for Android devices (Android SDK 26.0.0)
• Android SDK at /Users/kyles/Library/Android/sdk
• Platform android-26, build-tools 26.0.0
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_112-release-b06)
[✓] iOS toolchain - develop for iOS devices (Xcode 8.3.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 8.3.3, Build version 8E3004b
• ios-deploy 1.9.1
• CocoaPods version 1.2.1
[✓] Android Studio (version 2.3)
• Android Studio at /Applications/Android Studio.app/Contents
• Java version OpenJDK Runtime Environment (build 1.8.0_112-release-b06)
[✓] IntelliJ IDEA Community Edition (version 2017.2.1)
• Flutter plugin version 16.0
• Dart plugin version 172.3544.34
[✓] Connected devices
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.0.0 (API 26) (emulator)
Also, I transferred the code to my laptop which has the previous version of flutter installed and it compiles and runs perfectly fine.
Fixed
Eric Seidel from Google explained this has been fixed, but has not been pushed down to the alpha channel yet. In the meantime, it is possible to just use 'flutter channel master' to switch to the latest code with the fix