java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at com.appcelerator.titanium.mobile.cli.IOSCommandsHelper.getIOSTargetDevice(IOSCommandsHelper.java:368)
at com.appcelerator.titanium.mobile.cli.nodejs.IOSNodeJSCommandsHelper.runOnSimulator(IOSNodeJSCommandsHelper.java:358)
at com.appcelerator.titanium.mobile.cli.nodejs.NodeTitaniumSDKCommandsHandler.run(NodeTitaniumSDKCommandsHandler.java:578)
at com.appcelerator.titanium.mobile.ui.iphone.launch.IOSSimulatorLaunchConfigurationDelegate.launch(IOSSimulatorLaunchConfigurationDelegate.java:66)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:937)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1141)

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