Failed to find a suitable device for the type IBSimDeviceTypeiPad2x 解決方法 - Xcode

如今在用react native開發app，感受客戶端真的坑很多。

今天更新Xcode，就趕上了Build Failed，報Failed to find a suitable device for the type IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) with runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4 這個錯誤，如下幾個爲解決辦法

1. 最有效最簡單的辦法

殺死全部模擬器進程

$ sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService

設置正確的Xcode路徑

$ sudo xcode-select -s /Applications/Xcode.app/Contents/Developer

若是不起做用，重置全部模擬器

$ xcrun simctl erase all

2. 這種方法很差，由於全部的文件都在node_modules中

找到ios文件夾中全部的findmatchingsimulator.js

if (!version.includes('iOS') && !version.includes('tvOS')) { continue; } 將上面的IOS換爲com.apple.CoreSimulator.SimRuntime.iOS，tvOS換爲com.apple.CoreSimulator.SimRuntime.tvOS

3. 萬能卸載大法，但試過對我沒起做用

Delete Xcode in Launchpad.

Clean ~/Library/Developer folder.

Open the App Store, the Xcode APP button will be "Open".

Open it.

4. 最最後不行就重啓電腦吧，有時候真的就起做用了