diff --git a/tiramisu/error.py b/tiramisu/error.py
index f278148..46eace1 100644
--- a/tiramisu/error.py
+++ b/tiramisu/error.py
@@ -118,11 +118,12 @@ class PropertiesOptionError(AttributeError):
                                         self._name,
                                         prop_msg,
                                         msg))
-        self.msg = str(_('cannot access to {0} "{1}" because has {2} {3}'
-                         '').format(self._opt_type,
-                                    self._name,
-                                    prop_msg,
-                                    msg))
+        else:
+            self.msg = str(_('cannot access to {0} "{1}" because has {2} {3}'
+                             '').format(self._opt_type,
+                                        self._name,
+                                        prop_msg,
+                                        msg))
         del self._path, self._index, self._requires, self._opt_type, self._name, self._config_bag
         del self._settings, self._orig_opt
         return self.msg
diff --git a/tiramisu/setting.py b/tiramisu/setting.py
index 83e39c8..82f2da9 100644
--- a/tiramisu/setting.py
+++ b/tiramisu/setting.py
@@ -518,11 +518,11 @@ class Settings(object):
                         # transitive action, add action
                         if operator != 'and':
                             if readable:
-                                for msg in self.apply_requires(err.path,
-                                                               err.requires,
-                                                               err.index,
+                                for msg in self.apply_requires(err._path,
+                                                               err._requires,
+                                                               err._index,
                                                                True,
-                                                               err.config_bag).values():
+                                                               err._config_bag).values():
                                     calc_properties.setdefault(action, []).extend(msg)
                             else:
                                 calc_properties.add(action)