我按照网站上的简单说明（http://ionicframework.com/getting-started/）尝试使用我的mac进行离心运行
一切正常，直到我需要效仿
$ ionic emulate ios
我做得更深一些，我意识到同样的错误在于我试图运行ios-sim
这是我看到的
$ ios-sim start
2015-02-27 14:01:57.361 ios-sim[1810:208272] [MT] DVTAssertions: ASSERTION FAILURE in /SourceCache/DVTiOSFrameworks/DVTiOSFrameworks-6274/DVTiPhoneSimulatorRemoteClient/DTiPhoneSimulatorSessionConfig.m:143
Details: (runtime) should not be nil.
Object: <DTiPhoneSimulatorSystemRoot>
Method: +rootWithSimRuntime:
Thread: <NSThread: 0x7ff44a5105f0>{number = 1, name = main}
Hints: None
Backtrace:
0 0x0000000110abe24a -[DVTAssertionHandler handleFailureInMethod:object:fileName:lineNumber:assertionSignature:messageFormat:arguments:] (in DVTFoundation)
1 0x0000000110abdc9f _DVTAssertionHandler (in DVTFoundation)
2 0x0000000110abdf8e _DVTAssertionFailureHandler (in DVTFoundation)
3 0x0000000111062614 +[DTiPhoneSimulatorSystemRoot rootWithSimRuntime:] (in DVTiPhoneSimulatorRemoteClient)
4 0x0000000111061897 -[DTiPhoneSimulatorSessionConfig simulatedSystemRoot] (in DVTiPhoneSimulatorRemoteClient)
5 0x000000010ebadab0 -[iPhoneSimulator launchApp:withFamily:uuid:environment:stdoutPath:stderrPath:timeout:args:] (in ios-sim)
6 0x000000010ebaecfd -[iPhoneSimulator runWithArgc:argv:] (in ios-sim)
7 0x000000010ebaefbb main (in ios-sim)
8 0x000000010ebac37c start (in ios-sim)
9 0x0000000000000002
Abort trap: 6
请咨询