由于升级到Xcode 10.2，我无法再通过cli运行react-native run-ios

Question

我今天升级到Xcode 10.2，因为升级无法react-native run-ios通过cli 运行：

react-native run-ios --simulator="iPhone X"

Found Xcode workspace a.xcworkspace

Could not find iPhone X simulator

Error: Could not find iPhone X simulator
    at resolve (/Users/user/Documents/work/a/a-light-ui/node_modules/react-native/local-cli/runIOS/runIOS.js:149:13)
    at new Promise (<anonymous>)
    at runOnSimulator (/Users/user/Documents/work/a/a-light-ui/node_modules/react-native/local-cli/runIOS/runIOS.js:134:10)
    at Object.runIOS [as func] (/Users/user/Documents/work/a/a-light-ui/node_modules/react-native/local-cli/runIOS/runIOS.js:106:12)
    at Promise.resolve.then (/Users/user/Documents/work/a/a-light-ui/node_modules/react-native/local-cli/cliEntry.js:117:22)    

如果我运行xcrun simctl list devices所有模拟器，则显示(Shutdown) (unavailable, runtime profile not found)：

iPhone X (7AADFA50-7B57-4A40-8434-9A86F345D7ED) (Shutdown) (unavailable, runtime profile not found)

自从将xcode升级到10.2以来，还有其他人遇到过RN的问题吗？它仍然可以通过Xcode ..起作用，但这意味着打开Xcode。

Answer 1

我这样解决了;

首先，您需要走这条路

node_modules / react-native / local-cli / runIOS / findMatchingSimulator.js

然后;

您需要更改此代码

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

与

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

我希望这会有所帮助，

参考：https : //github.com/facebook/react-native/issues/21498#issuecomment-476621627