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Create a project with two files, and a unit test for one of those files. Run the test. The Report window should list both files. Delete the file without the tests. Running further tests and/or trying to 'clear Results' will display a warning: "The file /foo/bar/bat.php seems no longer valid" This is not an exception, so there is nothing in the logs to attach. The only way to remove the error is to restart the IDE.