tried to run yarn test:coverage, but failed
yarn test:coverage
yarn run v1.22.4
$ grunt test:coverage
Running "run:testCoverageServer" (run) task
Verifying property run.testCoverageServer exists in config...ERROR
>> Unable to process task.
Warning: Required config property "run.testCoverageServer" missing. Use --force to continue.
Aborted due to warnings.
error Command failed with exit code 3.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
I could not find any document and code related to run.testCoverageServer
how could I launch test with coverage?