Why doesn't a camera open with flutter?
Please ensure that the following dependencies are set:
camera:
path_provider:
path:
dependencies:
flutter:
sdk: flutter
camera:
path_provider:
path:
Ensure that plugin services are initialized so that `availableCameras() can be called
WidgetsFlutterBinding.ensureInitialized();
final cameras = await availableCameras();
Efim Rubin
Updated on December 26, 2022Comments
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Efim Rubin over 1 year
I am trying to make a camera open using flutter and this is what I get:
E/flutter (26189): [ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: MissingPluginException(No implementation found for method availableCameras on channel plugins.flutter.io/camera)
E/flutter (26189): #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:157:7)
E/flutter (26189): < asynchronous suspension>
E/flutter (26189): #1 availableCameras (package:camera/camera.dart:56:9)
E/flutter (26189): < asynchronous suspension>
E/flutter (26189): #2 main (package:flutter_realtime_detection/main.dart:11:15)
E/flutter (26189): < asynchronous suspension>
this is the line flutter does not accept:
Future<Null> main() async { WidgetsFlutterBinding.ensureInitialized(); try { cameras = await availableCameras(); } on CameraException catch (e) { print('Error: $e.code\nError Message: $e.message'); } runApp(new MyApp()); }
I have tried flutter clean, hot reloads but nothing helps(
Here is flutter doctor -v:
[✓] Flutter (Channel master, 1.24.0-8.0.pre.342, on macOS 11.1 20C69 darwin-x64, locale en-GB) • Flutter version 1.24.0-8.0.pre.342 at /Users/fimarubin/Developer/flutter \ • Framework revision 226532b157 (4 weeks ago), 2020-11-21 12:08:04 +0100\ • Engine revision 23a8e027db\ • Dart version 2.12.0 (build 2.12.0-62.0.dev) [✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)\ • Android SDK at /Users/fimarubin/Library/Android/sdk\ • Platform android-30, build-tools 30.0.2\ • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java\ • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)\ • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS (Xcode 12.3)\ • Xcode at /Applications/Xcode.app/Contents/Developer\ • Xcode 12.3, Build version 12C33\ • CocoaPods version 1.10.0 [✓] Android Studio (version 4.1)\ • Android Studio at /Applications/Android Studio.app/Contents\ • 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 1.8.0_242-release-1644-b3-6915495) [✓] Connected device (1 available)\ • SM G9750 (mobile) • R28M31Y893Y • android-arm64 • Android 10 (API 29) • No issues found!
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Efim Rubin over 3 yearsI edited a post, so you could see my main function. I did that already(
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Ken Lee over 3 yearsI see. I also slightly revised my answer. Have you set all the required dependencies ?
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Efim Rubin over 3 yearsYes, Thank you, I re-checked my pubspec.yaml and it turned out I had the wrong camera dependency( Thank you!
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Ken Lee over 3 yearsYou are welcome. Please mark this as answered so that we can close it.