【发布时间】：2021-04-13 07:41:24
【问题描述】：
我正在尝试使用 Appium 1.19.1 版在我使用 Xcode 12.3 构建的物理 ipad 设备上测试 ipad 应用程序。以前这按预期工作，但最近我根本无法让 Appium 运行，我怀疑 Xcode 12.3 可能是我发现的问题。
当我尝试从 python 运行 Appium 时，这是打印到我的 python 控制台的跟踪（设备序列号/udid 故意隐藏）：
File "/Users/opt/anaconda3/lib/python3.7/site-packages/appium/webdriver/webdriver.py", line 155, in __init__
proxy
File "/Users/opt/anaconda3/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "/Users/opt/anaconda3/lib/python3.7/site-packages/appium/webdriver/webdriver.py", line 225, in start_session
response = self.execute(RemoteCommand.NEW_SESSION, parameters)
File "/Users/opt/anaconda3/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "/Users/opt/anaconda3/lib/python3.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Unable to launch WebDriverAgent because of xcodebuild failure: xcodebuild failed with code 65
xcodebuild error message:
2021-01-06 17:04:24.366 xcodebuild[16217:213101] Error writing xctestrun file: Error Domain=NSCocoaErrorDomain Code=4 "The folder “WebDriverAgentRunner_iphoneos14.3-arm64.xctestrun” doesn’t exist." UserInfo={NSFilePath=/Users/Library/Developer/Xcode/DerivedData/WebDriverAgent-alwvnomvwrdtzoaxbbkniqrpcdpp/Build/Products/WebDriverAgentRunner_iphoneos14.3-arm64.xctestrun, NSUserStringVariant=Folder, NSUnderlyingError=0x7fb116ac6ad0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}
** TEST BUILD FAILED **
2021-01-06 17:04:24.380 xcodebuild[16217:213102] IDETestOperationsObserverDebug: Writing diagnostic log for test session to:
/Users/Library/Developer/Xcode/DerivedData/WebDriverAgent-alwvnomvwrdtzoaxbbkniqrpcdpp/Logs/Test/Test-WebDriverAgentRunner-2021.01.06_17-04-22--0600.xcresult/Staging/2_Test/Diagnostics/WebDriverAgentRunner-E1E91CAE-6813-4009-872F-D9B73C898BBD/WebDriverAgentRunner-0D722399-E7A6-4474-8791-593FA62358F6/Session-WebDriverAgentRunner-2021-01-06_170424-nMI8G0.log
2021-01-06 17:04:24.382 xcodebuild[16217:213028] [MT] IDETestOperationsObserverDebug: (DF79B2A2-04AF-4A59-87B7-DBB8279EC46E) Beginning test session WebDriverAgentRunner-DF79B2A2-04AF-4A59-87B7-DBB8279EC46E at 2021-01-06 17:04:24.381 with Xcode 12C33 on target ????<DVTiOSDevice (0x7fb11a157e10), ****, iPad, 14.3 (18C66), ****> {
deviceSerialNumber: ****
identifier: ****
deviceClass: iPad
deviceName: ****
deviceIdentifier: ****
productVersion: 14.3
buildVersion: 18C66
deviceSoftwareVersion: 14.3 (18C66)
deviceArchitecture: arm64e
deviceTotalCapacity: 249024532480
deviceAvailableCapacity: 240144109568
deviceIsTransient: NO
ignored: NO
deviceIsBusy: NO
deviceIsPaired: YES
deviceIsActivated: YES
deviceActivationState: Activated
isPasscodeLocked: NO
deviceType: <DVTDeviceType:0x7fb113d0a3d0 Xcode.DeviceType.iPhone>
supportedDeviceFamilies: (
1,
2
)
applications: (null)
provisioningProfiles: (null)
hasInternalSupport: NO
hasWritableSystem: NO
isSupportedOS: YES
bootArgs: (null)
nextBootArgs: (null)
connected: YES
isWirelessEnabled: NO
connectionType: direct
hostname: (null)
bonjourServiceName: ****
activeProxiedDevice: (null)
} (14.3 (18C66))
2021-01-06 17:04:24.498 xcodebuild[16217:213028] [MT] IDETestOperationsObserverDebug: (****) Finished requesting crash reports. Continuing with testing.
*** If you believe this error represents a bug, please attach the result bundle at /Users/Library/Developer/Xcode/DerivedData/WebDriverAgent-alwvnomvwrdtzoaxbbkniqrpcdpp/Logs/Test/Test-WebDriverAgentRunner-2021.01.06_17-04-22--0600.xcresult
2021-01-06 17:04:24.514 xcodebuild[16217:213028] [MT] IDETestOperationsObserverDebug: 0.141 elapsed -- Testing started completed.
2021-01-06 17:04:24.514 xcodebuild[16217:213028] [MT] IDETestOperationsObserverDebug: 0.000 sec, +0.000 sec -- start
2021-01-06 17:04:24.514 xcodebuild[16217:213028] [MT] IDETestOperationsObserverDebug: 0.141 sec, +0.141 sec -- end
Test session results, code coverage, and logs:
/Users/Library/Developer/Xcode/DerivedData/WebDriverAgent-alwvnomvwrdtzoaxbbkniqrpcdpp/Logs/Test/Test-WebDriverAgentRunner-2021.01.06_17-04-22--0600.xcresult
Testing failed:
Building for iOS, but the embedded framework 'CocoaAsyncSocket.framework' was built for iOS + iOS Simulator.
Building for iOS, but the embedded framework 'YYCache.framework' was built for iOS + iOS Simulator.
Building for iOS, but the linked and embedded framework 'CocoaAsyncSocket.framework' was built for iOS + iOS Simulator.
Building for iOS, but the linked and embedded framework 'YYCache.framework' was built for iOS + iOS Simulator.
WebDriverAgentRunner:
WebDriverAgentRunner-Runner.app encountered an error (Failed to install or launch the test runner. If you believe this error represents a bug, please attach the result bundle at /Users/Library/Developer/Xcode/DerivedData/WebDriverAgent-alwvnomvwrdtzoaxbbkniqrpcdpp/Logs/Test/Test-WebDriverAgentRunner-2021.01.06_17-04-22--0600.xcresult. (Underlying Error: The file “WebDriverAgentRunner-Runner.app” couldn’t be opened because there is no such file. The file doesn’t exist. (Underlying Error: The operation couldn’t be completed. No such file or directory)))
** TEST EXECUTE FAILED **
Testing started. 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.
通过研究，我发现this answer 链接到an apple developer forum post，这让我相信问题出在appium 必须使用的框架之一与Xcode 12.3 不合作。
我也遇到过another suggestion，我尝试过，但没有解决我的问题。
另外，这就是我在Test-WebDriverAgentRunner-2021.01.06_17-04-19--0600.xcresult 看到的：
Assertions: System: Failed to install or launch the test runner. If you believe this error represents a bug, please attach the result bundle at /Users/Library/Developer/Xcode/DerivedData/WebDriverAgent-alwvnomvwrdtzoaxbbkniqrpcdpp/Logs/Test/Test-WebDriverAgentRunner-2021.01.06_17-04-19--0600.xcresult. (Underlying Error: The file “WebDriverAgentRunner-Runner.app” couldn’t be opened because there is no such file. The file doesn’t exist. (Underlying Error: The operation couldn’t be completed. No such file or directory))
那么此时我还有什么可以尝试的，或者这是否会归结为 appium 使用的框架需要更新？任何想法或建议都非常感谢！
【问题讨论】：