【Appium踩坑】xcodebuild: Unable to find a destination matching the provided destination specifier_xcodebuild: error: unable to find a destination ma

问题现象：

1、WebdriverAgent 在 Xcode + 真机上 test 正常
2、开启 appium server 后，UI 脚本启动后提示：

[W3C][39m Encountered internal error running command:
 Error: Unable to launch WebDriverAgent because of xcodebuild failure: 
 xcodebuild failed with code 70
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解决：

1、先查一下 xcodebuild failed with code 70

解决思路都是：
（1）在 Xcode 上启动WebdriverAgent，再执行
（2）升级 appium
但我本地已经是最新appium 并在真机上testing了。
应该不是一样的问题，可能有其他问题，继续查看日志。

日志里有一行：

2021-06-25 07:58:19:379 [WebDriverAgent] Output from xcodebuild will only be logged if any errors are present there. 
To change this, use 'showXcodeLog' desired capability
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2、尝试增加caps “showXcodeLog”，查看详细Xcode 日志

caps['showXcodeLog']=True
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继续执行 UI 脚本，出现新的报错信息了！

[W3C] Command line invocation:
      ...
[W3C] xcodebuild: error: Unable to find a destination matching the provided destination specifier:
[W3C] 		{ id:00008222-001E11D90C32223A }
[W3C] 	The requested device could not be found because no available devices matched the request.
[W3C] 	Available destinations for the "WebDriverAgentRunner" scheme:
[W3C] 		{ platform:macOS, arch:x86_64, variant:Mac Catalyst, id:46A4FF54-646C-5CD8-B468-A5240CB2A493 }
[W3C] 		{ platform:iOS, id:00008222-001A48322E32222E, name:11pro }
[W3C] 		{ platform:iOS Simulator, id:C0C7BD5B-7E0C-4647-BF54-795787136C76, OS:14.4, name:iPhone 11 }
[W3C] 		{ platform:iOS Simulator, id:D6E39731-468F-468E-875B-930A3C341A71, OS:14.4, name:iPhone 11 Pro }
[W3C] 		{ platform:iOS Simulator, id:C2D66A8F-2B7C-4E48-80CC-14C2086E3149, OS:14.4, name:iPod touch (7th generation) }
[W3C] 	Ineligible destinations for the "WebDriverAgentRunner" scheme:
[W3C] 		{ platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device }
[W3C] 		{ platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device }
[W3C] 		{ platform:macOS, variant:Mac Catalyst, name:Any Mac }. Make sure you follow the tutorial at https://github.com/appium/appium-xcuitest-driver/blob/master/docs/real-device-config.md. Try to remove the WebDriverAgentRunner application from the device if it is installed and reboot the device.
[W3C]     at quitAndUninstall (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-xcuitest-driver/lib/driver.js:528:15)
[W3C]     at /Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-xcuitest-driver/lib/driver.js:558:11
[W3C]     at wrapped (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/asyncbox/lib/asyncbox.js:35:13)
[W3C]     at retry (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/asyncbox/lib/asyncbox.js:18:13)
[W3C]     at retryInterval (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/asyncbox/lib/asyncbox.js:45:10)
[W3C]     at /Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-xcuitest-driver/lib/driver.js:538:7
[W3C] Destroying socket connection
[HTTP] <-- POST /wd/hub/session 500 73297 ms - 8303
[HTTP] 
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重点在这两行：

[W3C] xcodebuild: error: Unable to find a destination matching the provided destination specifier:
[W3C] 		{ id:00008222-001E11D90C32223A }
[W3C] 	The requested device could not be found because no available devices matched the request.
[W3C] 	Available destinations for the "WebDriverAgentRunner" scheme:
[W3C] 		{ platform:macOS, arch:x86_64, variant:Mac Catalyst, id:46A4FF54-646C-5CD8-B468-A5240CB2A493 }
[W3C] 		{ platform:iOS, id:00008222-001A48322E32222E, name:11pro }
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xcodebuild 执行时，找不到 id:00008222-001E11D90C32223A
但我执行的设备是 11pro 啊， id:00008222-001A48322E32222E
○|￣|_

好叭，继续看：

> instruments -s devices
`instruments` is now deprecated in favor of 'xcrun xctrace' (see `man xctrace` for more information on its replacement)
Known Devices:
(null) [00008222-001E11D90C32223A]
11pro (14.3) [00008222-001A48322E32222E]
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00008222-001E11D90C32223A 是个 null ???

换个设备连上电脑：

> instruments -s devices
`instruments` is now deprecated in favor of 'xcrun xctrace' (see `man xctrace` for more information on its replacement)
Known Devices:
XsMax (14.6) [00008222-001E11D90C32223A]
 (null) [00008222-001A48322E32222E]
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嗷，懂了。
两台设备都连上电脑了，想跑 A 时会自动连接 B，想跑 B 时会自动连接 A
○|￣|_

那现在是 2 两台设备： XsMax 和 11pro
想跑 11pro，那把 XsMax 先关机试一下：

> instruments -s devices
`instruments` is now deprecated in favor of 'xcrun xctrace' (see `man xctrace` for more information on its replacement)
Known Devices:
11pro (14.3) [00008222-001A48322E32222E]
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妥了，重新执行 UI脚本，正常执行！ yeah
( 嗷，另一台设备也可以重新启动了，之后就ok了