1 files changed, 2 insertions, 1 deletions
diff --git a/lib/oe/types.py b/lib/oe/types.py
index 0fb91db248..86de4b084b 100644
--- a/lib/oe/types.py
+++ b/lib/oe/types.py
@@ -27,7 +27,8 @@ def factory(var_type):
     try:
         return types[var_type]
     except KeyError:
-        raise TypeError("Invalid type '%s'" % var_type)
+        raise TypeError("Invalid type '%s':\n  Valid types: %s" %
+                        (var_type, ', '.join(types)))
 
 def create(value, var_type, **flags):
     """Create an object of the specified type, given the specified flags and