Simulator runtimes not found. java.lang.NullPointerException: list must not be null

[filipef101]

Is there an existing issue for this?

• I have searched the existing issues and didn't find mine.

Steps to reproduce

Not clear how to reproduce, could be related to a new way xcode manages/installs runtimes.

Actual results

❯ maestro --version
Exception in thread "main" java.lang.NullPointerException: list must not be null
        at maestro.cli.util.IOSEnvUtils.getSimulatorRuntimes(IOSEnvUtils.kt:19)
        at maestro.cli.analytics.Analytics.maybeUploadAnalyticsAsync(Analytics.kt:147)
        at maestro.cli.AppKt.main(App.kt:99)

Expected results

no error

About app

not relevant

About environment

• Maestro version: 1.37.4
• Xcode version: 16 beta
• macOS version: 15.0
• Installation method: both Homebrew and curl

Logs

Logs

❯ curl -Ls "https://get.maestro.mobile.dev/" | bash * Create distribution directories... * Downloading... ######################################################################## 100.0% * Checking archive integrity... * Extracting archive... * Copying archive contents... * Cleaning up...

Installation was successful!
Please open a new terminal OR run the following in the existing one:

export PATH="$PATH":"$HOME/.maestro/bin"

Then run the following command:

maestro

Welcome to Maestro!
❯ which maestro
/Users/filipe/.maestro/bin/maestro
❯ maestro
Exception in thread "main" java.lang.NullPointerException: list must not be null
at maestro.cli.util.IOSEnvUtils.getSimulatorRuntimes(IOSEnvUtils.kt:19)
at maestro.cli.analytics.Analytics.maybeUploadAnalyticsAsync(Analytics.kt:147)
at maestro.cli.AppKt.main(App.kt:99)

rm -rf ~/.maestro
rm -rf ~/.local/state/maestro
brew tap mobile-dev-inc/tap
brew install maestro

❯ maestro
Maestro CLI would like to collect anonymous usage data to improve the product.
Enable analytics? [Y/n] Y
Usage data collection enabled. Thank you!
Exception in thread "main" java.lang.NullPointerException: list must not be null
at maestro.cli.util.IOSEnvUtils.getSimulatorRuntimes(IOSEnvUtils.kt:19)
at maestro.cli.analytics.Analytics.maybeUploadAnalyticsAsync(Analytics.kt:147)
at maestro.cli.AppKt.main(App.kt:99)
❯ maestro --version
Exception in thread "main" java.lang.NullPointerException: list must not be null
at maestro.cli.util.IOSEnvUtils.getSimulatorRuntimes(IOSEnvUtils.kt:19)
at maestro.cli.analytics.Analytics.maybeUploadAnalyticsAsync(Analytics.kt:147)
at maestro.cli.AppKt.main(App.kt:99)
❯ which maestro
/opt/homebrew/bin/maestro

Maestro version

1.37.4

How did you install Maestro?

Homebrew

Anything else?

Slack thread https://mobile-dev-inc.slack.com/archives/C041FU72T54/p1722335707236339

After updating to latest version, Maestro is unable to access simulator runtimes, resulting in a NullPointerException. This occurs even when trying to check the Maestro version 🤯

❯ xcrun simctl runtime list
== Disk Images ==
-- iOS --
iOS 17.4 (21E213) - 821D4CFB-369B-47B5-A913-B35EBED48A54 (Ready)

Total Disk Images: 1 (6.7G)

/Library/Developer/CoreSimulator/Profiles/Runtimes
Is empty
Under user folder there is a "runtimeMap" /Users/<myusername>/Library/Developer/CoreSimulator/RuntimeMap.plist
Could be something with xcode beta 16

Using sudo maestro works

❯ sudo maestro --version
1.37.4
❯ sudo which maestro
/opt/homebrew/bin/maestro

[YonatanSegura97]

Same issue here.

[bartekpacia]

Hey @filipef101 and @YonatanSegura97, can you share what Java version are you on?

[bartekpacia]

/Library/Developer/CoreSimulator/Profiles/Runtimes is empty

Do you mean exactly this path? Because it doesn't exist, actually (at least on my machine).

The right path where iOS simulator runtimes are is:

/Library/Developer/CoreSimulator/Volumes/*/Library/Developer/CoreSimulator/Profiles/Runtimes/

[bartekpacia]

should be resolved by #1858, not released yet

[filipef101]

/Library/Developer/CoreSimulator/Profiles/Runtimes is empty

Do you mean exactly this path? Because it doesn't exist, actually (at least on my machine).

The right path where iOS simulator runtimes are is:

/Library/Developer/CoreSimulator/Volumes/*/Library/Developer/CoreSimulator/Profiles/Runtimes/

Yeah, that exists

[filipef101]

Hey @filipef101 and @YonatanSegura97, can you share what Java version are you on?

❯ java --version
openjdk 17.0.10 2024-01-16 LTS
OpenJDK Runtime Environment Zulu17.48+15-CA (build 17.0.10+7-LTS)
OpenJDK 64-Bit Server VM Zulu17.48+15-CA (build 17.0.10+7-LTS, mixed mode, sharing)
❯ javac --version
javac 17.0.10

[bartekpacia]

Hey Filipe, this shouldn't happen anymore in the latest version. Please let me know :)

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