sergiyb@ suggested a fix that's probably similar in https://bugs.chromium.org/p/chromium/issues/detail?id=659356#c1

Hmm, "No builders found for the given test type. Please select another." This probably means that no bots are uploading results?

Note that we expect test launcher owners to do this work as we don't know the specifics of each individual test launcher.

Re #2, where do you see this error?

That's what http://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=trace_test says in bold at the bottom.

Looks like this is a GPU test, adding kbr@.

Is the test launcher something in the Chromium repo? content/test/gpu/gpu_tests/trace_test.py?

Re #5: Yes, I think it means it's not uploading results. Another way to see this is to run this query: https://plx.corp.google.com/script/#a=qo%7Ci=google%253A%253Ascript_3b._008d57_0666_4a19_9cf6_69ddda7b7a1c. I just ran it and it reports 0% for trace_test, which means that it's not uploading any test results to test-server at all.

Re #8: I'm not sure, kbr@ should know more about it.

It's a Telemetry based harness and work is underway to get flakiness dashboard results working for these.

Is there a tracking bug for that work? Perhaps this one can be a dupe of such bug.