Error with WebDriverAgentRunner and Xcode 11.6

The problem

Actually this is not an issue, more a question of how the Webdriveragentrunner works with the Xcode 11.6. To be more specific, I used to run once the following command and then close the terminal session. Everything worked perfectly and I didn’t face any issue. xcodebuild -project WebDriverAgent.xcodeproj -scheme WebDriverAgentRunner -destination 'id=<id>' clean build test

Then I upgraded to the latest Xcode version 11.6 and I faced many problems with the execution (please check the error logs). The only thing that solved the problem was the fact that I didn’t close the terminal in one of my attempts to investigate the issue. Thus, I would like to ask you, what is the correct usage of the Webdriveragentrunner app.

Environment

• Appium version (or git revision) that exhibits the issue: v1.18.0-beta.1
• Desktop OS/version used to run Appium: macOS Catalina
• Mobile platform/version under test: iOS 13.6 and iOS 13.4.1
• Real device or emulator/simulator: iPhone XS
• Appium CLI or Appium.app|exe: Appium.app

Link to Appium logs

https://gist.github.com/nikoskyr/76bb47e5621300dbd4c5c07dc0fe771f

[mykola-mokhnach]

No idea. Try to build WDA sources from Xcode manually and check what is missing

[nikoskyr]

Thanks @amokmen, your explanation was very good and solved many questions I had. That’s why I mentioned it as a “problem” because I couldn’t understand the exact behaviour.