Hello, I am following Hybris Rule Engine Trail (https://help.hybris.com/6.1.0/hcd/b5887096128e40f48ab48a6427ee8df3.html) and I can't create the ruleenginetrail Extension. The message on the log is "Extension 'ruleenginetrail' doesn't specify a path and no scanned extension was matching the name." Same happens with the Promotion Engine Trail, I can't add the promotionenginetrail extension.