appium 版本：1.5.3
xcode 版本：7.3（之前是 8.3 的版本，appium 提示 xcode 版本过高不支持）
以下 appium 是日志

[MJSONWP] Encountered internal error running command: Error: Could not match line
    at getDevices$ (lib/simctl.js:163:15)
    at tryCatch (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at GeneratorFunctionPrototype.invoke (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
    at run (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/node_modules/core-js/library/modules/es6.promise.js:104:47)
    at /Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/node_modules/core-js/library/modules/es6.promise.js:115:28
    at flush (/Applications/Appium.app/Contents/Resources/node_modules/appium/node_modules/babel-runtime/node_modules/core-js/library/modules/$.microtask.js:19:5)
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)