With reference to https://bugs.launchpad.net/oslo.service/+bug/1525992 , the workaround for the issue is to add manually oslo.i18n>=2.1.0 to /fuel-qa/fuelweb_test/requirements.txt
With reference to https:/ /bugs.launchpad .net/oslo. service/ +bug/1525992 , the workaround for the issue is to add manually oslo.i18n>=2.1.0 to /fuel-qa/ fuelweb_ test/requiremen ts.txt