Stuck on an issue?

When trying to discover reports automatically on AppVeyor I get the following error on the FIND command:

FIND: Parameter format not correct
child_process.js:1389
    throw err;
          ^
Error: Command failed: find . -type f \( -name '*coverage.*' -or -name 'nosetests.xml' -or -name 'jacoco*.xml' -or -name 'clover.xml' -or -name 'report.xml' -or -name 'cobertura.xml' -or -name 'luacov.report.out' -or -name 'lcov.info' -or -name '*.lcov' -or -name 'gcov.info' -or -name '*.gcov' -or -name '*.lst' \) -not -name '*.sh' -not -name '*.data' -not -name '*.py' -not -name '*.class' -not -name '*.xcconfig' -not -name 'Coverage.profdata' -not -name 'phpunit-code-coverage.xml' -not -name 'coverage.serialized' -not -name '*.pyc' -not -name '*.cfg' -not -name '*.egg' -not -name '*.whl' -not -name '*.html' -not -name '*.js' -not -name '*.cpp' -not -name 'coverage.jade' -not -name 'include.lst' -not -name 'inputFiles.lst' -not -name 'createdFiles.lst' -not -name 'coverage.html' -not -name 'scoverage.measurements.*' -not -name 'test_*_coverage.txt' -not -path '*/vendor/*' -not -path '*/htmlcov/*' -not -path '*/home/cainus/*' -not -path '*/virtualenv/*' -not -path '*/js/generated/coverage/*' -not -path '*/.virtualenv/*' -not -path '*/virtualenvs/*' -not -path '*/.virtualenvs/*' -not -path '*/.env/*' -not -path '*/.envs/*' -not -path '*/env/*' -not -path '*/envs/*' -not -path '*/.venv/*' -not -path '*/.venvs/*' -not -path '*/venv/*' -not -path '*/venvs/*' -not -path '*/.git/*' -not -path '*/.hg/*' -not -path '*/.tox/*' -not -path '*/__pycache__/*' -not -path '*/.egg-info*' -not -path '*/$bower_components/*' -not -path '*/node_modules/*' -not -path '*/conftest_*.c.gcov'
FIND: Parameter format not correct

    at checkExecSyncError (child_process.js:1346:13)
    at execSync (child_process.js:1386:13)
    at Object.upload (C:\projects\test-codecov\node_modules\codecov\lib\codecov.js:260:18)
    at Object.<anonymous> (C:\projects\test-codecov\node_modules\codecov\bin\codecov:24:9)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Function.Module.runMain (module.js:501:10)
    at startup (node.js:129:16)

See complete build log here.

AppVeyor runs in a Windows environment and I can see in the source that the module uses cat and the syntax of find is *nix style. Is this testet on a Windows environment? I have not been able to get the windows shell to find any files with the syntax used in the search of reports.