Add Authors group to the "workflow-users" group. A user participating in a workflow must be member of group workflow-users. This gives him or her full access to: /etc/workflow/instances so that he or she can update the workflow instance.The group is included in the standard installation, but you mus...

Please check this answer:aem - What is the use of designDialogPath? - Stack Overflow Adding cq:design_dialog to page component resolves this.In my core components version (2.0.6) it exists in core/wcm/components/page/v2/page but not in core/wcm/components/page/v1/page