Troubleshooting steps when an active emulator is not found are not clear

[mobile-dev-inc]

Troubleshooting steps when an active emulator is not found are not clear

[astutesoftware]

Not resolved on windows at least even after installing 1.4.2

D:\data\maestro\maestro-1.4.2\bin>adb devices
List of devices attached
emulator-5554 device

D:\data\maestro\maestro-1.4.2\bin>maestro test twitter.yaml
java.lang.IllegalStateException: No devices found. Select a platform by passing --platform <android|ios> for more details
at maestro.cli.util.MaestroFactory.autoDetectPlatform(MaestroFactory.kt:68)
at maestro.cli.util.MaestroFactory.createMaestro(MaestroFactory.kt:33)
at maestro.cli.command.TestCommand.call(TestCommand.kt:58)
at maestro.cli.command.TestCommand.call(TestCommand.kt:30)
at picocli.CommandLine.executeUserObject(CommandLine.java:1933)
at picocli.CommandLine.access$1200(CommandLine.java:145)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2332)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2326)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2291)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2159)
at picocli.CommandLine.execute(CommandLine.java:2058)
at maestro.cli.AppKt.main(App.kt:74)

[dmitry-zaitsev]

@neonfink I see, it appears that adbkey.pub is not actually needed, but we are still checking for it. While we are fixing it on our side, what should unblock you is this command:

touch ~/.android/adbkey.pub

[dmitry-zaitsev]

Could you confirm that you have the following files in your ~/..android folder?

• adbkey
• adbkey.pub

[neonfink]

@dmitry-zaitsev I got adbkey in my ~/.android, but not adbkey.pub 🤔

Unfortunately I'm not aware how / when the .pub one is expected to be generate though?

[neonfink]

@dmitry-zaitsev it worked, thank you!

[ColtonIdle]

Came to the issue tracker to complain about the same issue.

adb devices shows my emulator. while trying to run a sample test with maestro maestro test sample_from_readme.yaml shows

java.lang.IllegalStateException: No devices found. Select a platform by passing --platform <android|ios> for more details

On a whim I tried touch ~/.android/adbkey.pub and re-ran the command and now it works.

magic!

[dmitry-zaitsev]

Maestro 1.4.2 was released that addresses this issue

[brookmg]

I am experiencing a similar issue with maestro version 1.7.0. adb devices returns the active device

List of devices attached
5200742a472c95e5	device

but maestro is throwing the exception. running maestro --platform android test ./app_open_test.yaml

java.lang.IllegalStateException: No android devices found.
	at maestro.cli.util.MaestroFactory.createAndroid(MaestroFactory.kt:51)
	at maestro.cli.util.MaestroFactory.createMaestro(MaestroFactory.kt:35)
	at maestro.cli.command.TestCommand.call(TestCommand.kt:58)
	at maestro.cli.command.TestCommand.call(TestCommand.kt:30)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1933)
	at picocli.CommandLine.access$1200(CommandLine.java:145)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2332)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2326)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2291)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2159)
	at picocli.CommandLine.execute(CommandLine.java:2058)
	at maestro.cli.AppKt.main(App.kt:88)

The adbKey and adbKey.pub files are present in the ~/.android folder as well.

[aakash1313]

I still get this error on MAC :(

[Bournegit]

It worked for the first time but later got this error
java.lang.IllegalStateException: No devices found. Select a platform by passing --platform <android|ios> for more details at maestro.cli.util.MaestroFactory.autoDetectPlatform(MaestroFactory.kt:78) at maestro.cli.util.MaestroFactory.createMaestro(MaestroFactory.kt:34) at maestro.cli.command.TestCommand.call(TestCommand.kt:58) at maestro.cli.command.TestCommand.call(TestCommand.kt:30) at picocli.CommandLine.executeUserObject(CommandLine.java:1933) at picocli.CommandLine.access$1200(CommandLine.java:145) at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2332) at picocli.CommandLine$RunLast.handle(CommandLine.java:2326) at picocli.CommandLine$RunLast.handle(CommandLine.java:2291) at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2159) at picocli.CommandLine.execute(CommandLine.java:2058) at maestro.cli.AppKt.main(App.kt:94)

[vikingprank]

Same here, starting my emulator on Windows, running adb -a -P 5037 nodaemon server in one PowerShell.

In the another PowerShell with WSL (ubuntu 22.04), I run:
adb devices List of devices attached emulator-5554 device, then
ls ~/.android adb.5037 adbkey adbkey.pub cache,
maestro --version 1.28.0
then export ADB_SERVER_SOCKET=tcp:192.168.1.33:5037 and finally:
maestro --host 192.168.1.33:5037 test /mnt/c/Users/xxx/My\ documents/xxx/xxx/mobile/e2e-tests/1-launch-app.yaml
and I get:

java.lang.IllegalStateException: No devices found.
at maestro.cli.session.MaestroSessionManager.selectDevice(MaestroSessionManager.kt:140)
at maestro.cli.session.MaestroSessionManager.newSession(MaestroSessionManager.kt:64)
at maestro.cli.session.MaestroSessionManager.newSession$default(MaestroSessionManager.kt:57)
at maestro.cli.command.TestCommand.call(TestCommand.kt:126)
at maestro.cli.command.TestCommand.call(TestCommand.kt:44)
at picocli.CommandLine.executeUserObject(CommandLine.java:1933)
at picocli.CommandLine.access$1200(CommandLine.java:145)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2332)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2326)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2291)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2159)
at maestro.cli.DisableAnsiMixin$Companion.executionStrategy(DisableAnsiMixin.kt:22)
at picocli.CommandLine.execute(CommandLine.java:2058)
at maestro.cli.AppKt.main(App.kt:136)