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mmcc007
Crash on execute type 'List<dynamic>' is not a subtype of type 'String'
Starting flutter daemon... 5.9s
Unhandled exception:
type 'List
The example throws this for me :( after cloning and installing required things
@flutterfromscratch provide output of
flutter doctor -v
cat screenshots.yaml
screenshots -v
Same issue for me. Here is the output I get:
[✓] Flutter (Channel stable, v1.12.13+hotfix.9, on Mac OS X 10.15.4 19E287, locale en-US)
• Flutter version 1.12.13+hotfix.9 at /Users/jpsheehan/Development/flutter
• Framework revision f139b11009 (3 weeks ago), 2020-03-30 13:57:30 -0700
• Engine revision af51afceb8
• Dart version 2.7.2
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at /Users/jpsheehan/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, 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_212-release-1586-b4-5784211)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 11.4.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.4.1, Build version 11E503a
• CocoaPods version 1.9.1
[✓] Android Studio (version 3.6)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 45.1.1
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
[✓] VS Code (version 1.44.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.9.1
[✓] Connected device (1 available)
• AOSP on IA Emulator • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)
• No issues found!
# A list of screen capture tests
tests:
# Note: flutter driver expects a pair of files eg, main1.dart and main1_test.dart
- test_driver/screenshots/screenshots.dart
# Interim location of screenshots from tests
staging: /tmp/screenshots
# A list of locales supported by the app
locales:
- en-US
# - de-DE
# A map of devices to emulate
devices:
ios:
iPhone XS Max:
iPhone 11 Pro:
frame: false # no screen avail so frame must be false
iPad Pro (12.9-inch) (3rd generation):
orientation:
- Portrait # default
- LandscapeRight
android:
Nexus 6P:
# Frame screenshots
frame: true
[ +106 ms] Starting flutter daemon...
[ +14 ms] executing: flutter daemon
[ +988 ms] <== Starting device daemon...
[ +4 ms] <== [{"event":"daemon.connected","params":{"version":"0.5.3","pid":37726}}]
[ +7 ms] ==> [{"method":"device.enable","id":0}]
[ +1 ms] waiting for response: {method: device.enable, id: 0}
[ +58 ms] <== [{"id":0}]
[+5063 ms] executing: [./] sh -c ios-deploy -c || echo "no attached devices"
[ +142 ms] Starting flutter daemon... (completed in 6.2s)
[ +3 ms] ==> [{"method":"device.getDevices","id":1}]
[ ] waiting for response: {method: device.getDevices, id: 1}
[ +68 ms] <== [{"id":1,"result":[{"id":"emulator-5554","name":"AOSP on IA Emulator","platform":"android-arm","emulator":false,"category":"mobile","platformType":"android","ephemeral":true,"emulatorId":null}]}]
[ +20 ms] daemonDevice=id: emulator-5554, name: AOSP on IA Emulator, category: mobile, platformType: android platform: android-arm, emulator: false, ephemeral: true, emulatorId: null, iosModel: null
[ +3 ms] ==> [{"method":"emulator.getEmulators","id":2}]
[ +2 ms] waiting for response: {method: emulator.getEmulators, id: 2}
[ +144 ms] <== [{"id":2,"result":[{"id":"flutter_emulator","name":"flutter emulator","category":"mobile","platformType":"android"},{"id":"apple_ios_simulator","name":"iOS Simulator","category":"mobile","platformType":"ios"}]}]
[ +1 ms] daemonEmulator=id: flutter_emulator, name: flutter emulator, category: mobile, platformType: android
[ +1 ms] daemonEmulator=id: apple_ios_simulator, name: iOS Simulator, category: mobile, platformType: ios
Unhandled exception:
type 'List<dynamic>' is not a subtype of type 'String'
#0 Config._processDevices.<anonymous closure>.<anonymous closure> (package:screenshots/src/config.dart:150:54)
#1 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:379:8)
#2 Config._processDevices.<anonymous closure> (package:screenshots/src/config.dart:137:15)
#3 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:379:8)
#4 Config._processDevices (package:screenshots/src/config.dart:136:13)
#5 Config.devices (package:screenshots/src/config.dart:57:7)
#6 Config.androidDevices (package:screenshots/src/config.dart:60:44)
#7 isValidConfig (package:screenshots/src/validate.dart:31:46)
#8 Screenshots.run (package:screenshots/src/run.dart:109:16)
<asynchronous suspension>
#9 screenshots.<anonymous closure> (package:screenshots/src/run.dart:42:26)
#10 AppContext.run.<anonymous closure> (package:tool_base/src/base/context.dart:154:29)
#11 _rootRun (dart:async/zone.dart:1147:13)
#12 _CustomZone.run (dart:async/zone.dart:1040:19)
#13 _runZoned (dart:async/zone.dart:1582:10)
#14 runZoned (dart:async/zone.dart:1502:10)
#15 AppContext.run (package:tool_base/src/base/context.dart:153:18)
#16 runInContext (package:screenshots/src/context_runner.dart:16:24)
#17 screenshots (package:screenshots/src/run.dart:41:12)
#18 main (file:///Users/jpsheehan/.pub-cache/hosted/pub.dartlang.org/screenshots-2.1.1/bin/main.dart:122:25)
<asynchronous suspension>
#19 _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:299:32)
#20 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)
I resolved this by changing the configuration file to the example included in the pubspec page, as suggested in #176.
devices:
ios:
iPhone XS Max:
iPhone 11 Pro:
frame: false # no screen avail so frame must be false
iPad Pro (12.9-inch) (3rd generation):
orientation: Portrait