AVD and Emulator: what parameters do I need to define a skin-supported device?

[myThorsten]

First of all, thank you for this great project :)

What are the parameters I have to give the AVD / the Emulator in order for screenshots to find the emulator and attach a skin?

I can do this no problem with Android Studio, but now I want to migrate to gitlab-runner. I managed to install an AVD and start an emulator, but screenshots cannot match it. This is what I have:

AVD and emulator

avdmanager --verbose create avd --force --name "Android_Emulator_API_28" --device "Nexus 6P" --package "system-images;android-28;google_ndk;x86"
emulator -avd Android_Emulator_API_28 -no-audio -no-boot-anim -no-window -accel auto -gpu off -memory 1024 &

Case 1:

• screenshots.yaml: Nexus 6P
• Output of screenshots: No device attached or emulator installed for device 'Nexus 6P' in screenshots.yaml.

screenshots.yaml

# A list of screen capture tests
tests:
    - test_driver/instrumented_app.dart 
staging: /tmp/screenshots
locales:
    - en-US
    - de-DE
# A map of devices to emulate
devices:
    android:
        Nexus 6P:
# Frame screenshots
frame: true

Ouput of screenshots

Can't load Kernel binary: Invalid kernel binary format version.
Precompiling executable...
Precompiled screenshots:main.
[  +30 ms] Starting flutter daemon...
[   +7 ms] executing: flutter daemon
[ +527 ms] <== [{"event":"daemon.connected","params":{"version":"0.5.3","pid":5312}}]
[   +3 ms] ==> [{"method":"device.enable","id":0}]
[        ] waiting for response: {method: device.enable, id: 0}
[        ] <== [{"event":"daemon.logMessage","params":{"level":"status","message":"Starting device daemon..."}}]
[        ] Warning: ignoring log message: [{"event":"daemon.logMessage","params":{"level":"status","message":"Starting device daemon..."}}]
[  +10 ms] <== [{"id":0,"result":[null,null,null,null]}]
[ +113 ms] Starting flutter daemon... (completed in 0.6s)
[        ] ==> [{"method":"device.getDevices","id":1}]
[        ] waiting for response: {method: device.getDevices, id: 1}
[   +2 ms] <== [{"id":1,"result":[]}]
[        ] ==> [{"method":"emulator.getEmulators","id":2}]
[        ] waiting for response: {method: emulator.getEmulators, id: 2}
[  +35 ms] <== [{"id":2,"result":[{"id":"Android_Emulator_API_28","name":"Android Emulator API 28","category":"mobile","platformType":"android"}]}]
[        ] daemonEmulator=id: Android_Emulator_API_28, name: Android Emulator API 28, category: mobile, platformType: android
[   +5 ms] No device attached or emulator installed for device 'Nexus 6P' in screenshots.yaml.
[   +1 ms] 
           Guide:
[        ] 
             Attached devices:
[        ] 
             Installed emulators:
[        ]     Android_Emulator_API_28
[        ] 
             Supported screens:
[        ]     android:
[        ]       Nexus 5X
[        ]       Nexus 6P
[        ]       Nexus 9
[        ]     ios:
[        ]       iPhone 6 Plus
[        ]       iPhone 6S Plus
[        ]       iPhone 6s Plus
[        ]       iPhone 7 Plus
[        ]       iPhone 8 Plus
[        ]       iPhone X
[        ]       iPhone XS
[        ]       iPhone XS Max
[        ]       iPhone Xs
[        ]       iPhone Xs Max
[        ]       iPad Pro (12.9-inch) (1st generation)
[        ]       iPad Pro (12.9-inch) (2nd generation)
[        ]       iPad Pro (12.9-inch) (3rd generation)
[        ] 
             Each device listed in screenshots.yaml with framing required must
               1. have a supported screen
               2. have an attached device or an installed emulator/simulator.
             To bypass requirement #1 add 'frame: false' after device in screenshots.yaml

Case 2:

• screenshots.yaml: Android_Emulator_API_28
• Output of screenshots: Screen not available for device 'Android_Emulator_API_28' in screenshots.yaml.

screenshots.yaml

# A list of screen capture tests
tests:
    - test_driver/instrumented_app.dart 
staging: /tmp/screenshots
locales:
    - en-US
    - de-DE
# A map of devices to emulate
devices:
    android:
        Android_Emulator_API_28:
# Frame screenshots
frame: true

Ouput of screenshots

Can't load Kernel binary: Invalid kernel binary format version.
Precompiling executable...
Precompiled screenshots:main.
[  +32 ms] Starting flutter daemon...
[   +7 ms] executing: flutter daemon
[ +521 ms] <== [{"event":"daemon.connected","params":{"version":"0.5.3","pid":5297}}]
[   +3 ms] ==> [{"method":"device.enable","id":0}]
[        ] waiting for response: {method: device.enable, id: 0}
[        ] <== [{"event":"daemon.logMessage","params":{"level":"status","message":"Starting device daemon..."}}]
[        ] Warning: ignoring log message: [{"event":"daemon.logMessage","params":{"level":"status","message":"Starting device daemon..."}}]
[  +10 ms] <== [{"id":0,"result":[null,null,null,null]}]
[ +139 ms] Starting flutter daemon... (completed in 0.6s)
[   +1 ms] ==> [{"method":"device.getDevices","id":1}]
[        ] waiting for response: {method: device.getDevices, id: 1}
[   +4 ms] <== [{"id":1,"result":[]}]
[   +1 ms] ==> [{"method":"emulator.getEmulators","id":2}]
[        ] waiting for response: {method: emulator.getEmulators, id: 2}
[  +59 ms] <== [{"id":2,"result":[{"id":"Android_Emulator_API_28","name":"Android Emulator API 28","category":"mobile","platformType":"android"}]}]
[        ] daemonEmulator=id: Android_Emulator_API_28, name: Android Emulator API 28, category: mobile, platformType: android
[   +5 ms] Screen not available for device 'Android_Emulator_API_28' in screenshots.yaml.
[   +1 ms] 
             Use a device with a supported screen or set 'frame: false' for
             device in screenshots.yaml.
[   +1 ms] 
             Supported screens:
[        ]     android:
[        ]       Nexus 5X
[        ]       Nexus 6P
[        ]       Nexus 9
[        ]     ios:
[        ]       iPhone 6 Plus
[        ]       iPhone 6S Plus
[        ]       iPhone 6s Plus
[        ]       iPhone 7 Plus
[        ]       iPhone 8 Plus
[        ]       iPhone X
[        ]       iPhone XS
[        ]       iPhone XS Max
[        ]       iPhone Xs
[        ]       iPhone Xs Max
[        ]       iPad Pro (12.9-inch) (1st generation)
[        ]       iPad Pro (12.9-inch) (2nd generation)
[        ]       iPad Pro (12.9-inch) (3rd generation)
[        ] 
             If framing for device is required, request screen support by
             creating an issue in:
             https://github.com/mmcc007/screenshots/issues.

[abdallaadelessa]

i was able to make it work using the following command

Create Command

avdmanager --verbose create avd -n Nexus_5X -k "system-images;android-29;default;x86" -d "Nexus 5X"

Launch Command

emulator -avd Nexus_5X -delay-adb -verbose -no-window -gpu swiftshader_indirect -no-snapshot -noaudio -no-boot-anim

My Config

# A list of screen capture tests
tests:
  # Note: flutter driver expects a pair of files eg, main1.dart and main1_test.dart
  - test_driver/main1.dart

# Interim location of screenshots from tests
staging: /tmp/screenshots

# A list of locales supported by the app
locales:
  - en-US

# A map of devices to emulate
devices:
  android:
    Nexus 5X:
      frame: true

the problem is with the avd name
Nexus_5X seems to work fine
i tried also Nexus_9 and also working
so i think the screenshots lib expects the avd name to be the device name separated by an underscore