XCUITest target invalid config sets both USES_XCTRUNNER and either TEST_HOST or RUNTIME_TEST_HOST

I am trying to add an XCUITest target to an existing application. When I try to run the tests, I get the error "Invalid configuration: MyProjectUITests sets both USES_XCTRUNNER and either TEST_HOST or RUNTIME_TEST_HOST".

I have seen information stating that it might be because I have multiple apps built from different build configurations in the same scheme, but I could not resolve the issue with any of the suggestions I saw.

I've attached a screenshot of the error message and a link to a project stripped down to just the existing configuration to help with diagnosing this issue. I would really love to be able to get some UI tests running.

My Project

XCUITest target invalid config sets both USES_XCTRUNNER and either TEST_HOST or RUNTIME_TEST_HOST
 
 
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