diff --git a/ckan/controllers/package.py b/ckan/controllers/package.py
index 2be958f72ed..85a84e86c64 100644
--- a/ckan/controllers/package.py
+++ b/ckan/controllers/package.py
@@ -607,9 +607,16 @@ def new_resource(self, id, data=None, errors=None, error_summary=None):
                     abort(401, _('Unauthorized to update dataset'))
                 if not len(data_dict['resources']):
                     # no data so keep on page
-                    h.flash_error(_('You must add at least one data resource'))
-                    redirect(h.url_for(controller='package',
-                                       action='new_resource', id=id))
+                    msg = _('You must add at least one data resource')
+                    # On new templates do not use flash message
+                    if g.legacy_templates:
+                        h.flash_error(msg)
+                        redirect(h.url_for(controller='package',
+                                           action='new_resource', id=id))
+                    else:
+                        errors = {}
+                        error_summary = {_('Error'): msg}
+                        return self.new_resource(id, data, errors, error_summary)
                 # we have a resource so let them add metadata
                 redirect(h.url_for(controller='package',
                                    action='new_metadata', id=id))
diff --git a/ckan/lib/app_globals.py b/ckan/lib/app_globals.py
index e98f975ca7d..ce32ca74505 100644
--- a/ckan/lib/app_globals.py
+++ b/ckan/lib/app_globals.py
@@ -57,6 +57,7 @@
     'openid_enabled': {'default': 'true', 'type' : 'bool'},
     'debug': {'default': 'false', 'type' : 'bool'},
     'ckan.debug_supress_header' : {'default': 'false', 'type' : 'bool'},
+    'ckan.legacy_templates' : {'default': 'false', 'type' : 'bool'},
 
     # int
     'ckan.datasets_per_page': {'default': '20', 'type': 'int'},