截止到2020-07-6 使用最新版xcode 运行 ios-Tagent 时会有以下报错，解决方案为降低xcode版本。我使用的是 11.3.1亲测可用。
xcode下载地址 https://developer.apple.com/download/more/
airtest 问题反馈 https://github.com/AirtestProject/AirtestIDE/issues/
Test Case '-[UITestingUITests testRunner]' failed (0.023 seconds).
Test Suite 'UITestingUITests' failed at 2020-07-04 16:12:13.329.
Executed 1 test, with 1 failure (1 unexpected) in 0.023 (0.025) seconds
Test Suite 'WebDriverAgentRunner.xctest' failed at 2020-07-04 16:12:13.330.
Executed 1 test, with 1 failure (1 unexpected) in 0.023 (0.027) seconds
Test Suite 'WebDriverAgentLib.framework' started at 2020-07-04 16:12:13.331
Test Suite 'WebDriverAgentLib.framework' passed at 2020-07-04 16:12:13.332.
Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.001) seconds
Test Suite 'All tests' failed at 2020-07-04 16:12:13.333.
Executed 1 test, with 1 failure (1 unexpected) in 0.023 (0.031) seconds
