gistfile1.txt

diff --git a/lib/Class/MOP/Class.pm b/lib/Class/MOP/Class.pm
index 237023b..4d0c77a 100644
--- a/lib/Class/MOP/Class.pm
+++ b/lib/Class/MOP/Class.pm
@@ -649,7 +649,8 @@ sub add_method {
             $method = $self->find_next_method_by_name($method_name);
             # die if it does not exist
             (defined $method)
-                || confess "The method '$method_name' was not found in the inheritance hierarchy for " . $self->name;
+                || confess "The method '$method_name' was not found in the inheritance hierarchy (" 
+                    . join(" -> ", $self->linearized_isa) . ") for " . $self->name;
             # and now make sure to wrap it
             # even if it is already wrapped
             # because we need a new sub ref
diff --git a/t/017_add_method_modifier.t b/t/017_add_method_modifier.t
index 37ecf5c..09c619d 100644
--- a/t/017_add_method_modifier.t
+++ b/t/017_add_method_modifier.t
@@ -70,7 +70,7 @@ use Class::MOP;
             CheckingAccount->meta->add_before_method_modifier(
                 'does_not_exist' => sub { } );
         },
-        qr/\QThe method 'does_not_exist' was not found in the inheritance hierarchy for CheckingAccount/
+        qr/\QThe method 'does_not_exist' was not found in the inheritance hierarchy (CheckingAccount -> BankAccount) for CheckingAccount/
     );
 
     ::ok( CheckingAccount->meta->has_method('withdraw'),