I updated to xcode 10 from Xcode 9.4 and then when trying to run my UI tests nothing seems to be working. The test app loads for a while then test failed although the build is successfully done before the tests. and the source code builds successfully as well and I can run the app on the simulator.
The error is:
Early unexpected exit, operation never finished bootstrapping - no restart will be attempted. (Underlying error: The test runner failed to load the test bundle. Executable cannot be loaded for some other reason, such as a problem with a library it depends on or a code signature/entitlements mismatch.))