- if @teams_error_message = content_for :flash_message do .alert.alert-danger= @teams_error_message %p You aren’t a member of any team on the Mattermost instance at %strong= Gitlab.config.mattermost.host %p To install this service, = link_to "#{Gitlab.config.mattermost.host}/select_team", target: '__blank' do join a team = icon('external-link') and try again. %hr .clearfix = link_to 'Go back', edit_namespace_project_service_path(@project.namespace, @project, @service), class: 'btn btn-lg pull-right'