react-native run ios出错，报找不到iPhone X模拟器

如题，这是一个react native的bug:

需要将:

node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js文件的: 

    // Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)

    if (!version.startsWith('iOS') && !version.startsWith('tvOS')) {

      continue;

    }

修改成：

    // Making sure the version of the simulator is an iOS or tvOS (Removes Apple Watch, etc)

    if (!version.startsWith('com.apple.CoreSimulator.SimRuntime.iOS') && !version.startsWith('com.apple.CoreSimulator.SimRuntime.tvOS')) {

      continue;

    }