Summary:
With the new xcode command line tools (10.1 beta2), running `xcrun simctl list --json devices` seems to gives us a slightly different format than what we were expecting. More specifically, the `availability` key is changed to `isAvailable` and returns `'YES'` if the simulator is available:
Before:
```js
devices: {
'iOS 9.2': [
{
state: 'Shutdown',
availability: '(unavailable, runtime profile not found)',
name: 'iPhone 4s',
udid: 'B9B5E161-416B-43C4-A78F-729CB96CC8C6',
},
{
state: 'Shutdown',
availability: '(unavailable, runtime profile not found)',
name: 'iPhone 5',
udid: '1CCBBF8B-5773-4EA6-BD6F-C308C87A1ADB',
},
...
]
}
```
After:
```js
devices: {
'iOS 12.1': [
{
state: 'Shutdown',
isAvailable: 'YES',
name: 'iPhone 6s',
udid: 'D0F29BE7-CC3C-4976-888D-C739B4F50508',
},
{
state: 'Shutdown',
isAvailable: 'YES',
name: 'iPhone 6',
udid: 'BA0D93BD-07E6-4182-9B0A-F60A2474139C',
},
...
]
}
```
Without this fix, `npm run ios` is not able to launch the simulator correctly and returns the following error:
```
Could not find iPhone 6 simulator
Error: Could not find iPhone 6 simulator
at resolve (/Users/antonyc/Projects/AwesomeProject/node_modules/react-native/local-cli/runIOS/runIOS.js:148:13)
at new Promise (<anonymous>)
at runOnSimulator (/Users/antonyc/Projects/AwesomeProject/node_modules/react-native/local-cli/runIOS/runIOS.js:134:10)
at Object.runIOS [as func] (/Users/antonyc/Projects/AwesomeProject/node_modules/react-native/local-cli/runIOS/runIOS.js:106:12)
at Promise.resolve.then (/Users/antonyc/Projects/AwesomeProject/node_modules/react-native/local-cli/cliEntry.js:117:22)
```
Pull Request resolved: https://github.com/facebook/react-native/pull/21557
Differential Revision: D10248115
Pulled By: TheSavior
fbshipit-source-id: 37197bbf828e4a6e254270d46411a6716a91afe3
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