我也是遇到了这个问题。然后同样的 wda 和 xcode、macos,换了 iOS 12.3 就成功了。折腾了我一天。等下一个 iOS 版本修复吧,
github 上面这么说的:https://github.com/appium/appium/issues/13927
Install the beta profile on your test device and install iOS 13.4 beta 3 or higher.
Wait for iOS 13.4 to be released.
Use a non-Personal Team provisioning profile. Personal Team provisioning profile says "Personal Team" in the Xcode build settings Runner Target > General > Signing and Capabilities > Team dropdown.
Run in the simulator.
Test on a iOS device running 13.3 or lower.