Hello world app with libgdx & RoboVM not running on iOS - ArrayIndexOutOfBoundsException

Question

I'm trying to run a libgdx app for iOS for the first time. I'm using the hello world app generated by the setup-ui and trying to run it on the iPhone simulator using robo-vm. When I try to run the app I'm getting this message:

An internal error occurred during: "Launching my-gdx-game-robovm"

Here's the error log:

!ENTRY org.eclipse.core.jobs 4 2 2013-10-23 11:12:02.701 !MESSAGE An internal error occurred during: "Launching my-gdx-game-robovm". !STACK 0 java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.get(ArrayList.java:324) at org.robovm.compiler.target.ios.IOSTarget.init(IOSTarget.java:497) at org.robovm.compiler.config.Config.build(Config.java:463) at org.robovm.compiler.config.Config.access$3700(Config.java:67) at org.robovm.compiler.config.Config$Builder.build(Config.java:909) at org.robovm.eclipse.internal.IOSSimulatorLaunchConfigurationDelegate.configure(IOSSimulatorLaunchConfigurationDelegate.java:59) at org.robovm.eclipse.internal.AbstractLaunchConfigurationDelegate.launch(AbstractLaunchConfigurationDelegate.java:143) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:858) at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:707) at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1018) at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1222) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

Running the desktop app works fine.

Please note that although I read that I need a developer account to use libgdx with iOS (I'm new to iOS development), I do not have one, but I don't think the error above reflects that.

Thanks in advance for any help.

Answer 1

The reason is most likely that you haven't agreed to the Xcode terms. Please open Xcode once or run sudo xcrun clang from a Terminal.

If you have already agreed to the terms another reason could be that xcode-select isn't pointing to the correct path. Run xcode-select -print-path in a Terminal to view the current path. Use sudo xcode-select -switch <path> to change the path pointed to.

The next version of RoboVM (0.0.6) will show more helpful error messages when these problems occur.