Fix raise exception when overriding params

ppcls/utils/config.py

@@ -147,9 +147,12 @@ def override(dl, ks, v):
         if len(ks) == 1:
             # assert ks[0] in dl, ('{} is not exist in {}'.format(ks[0], dl))
             if not ks[0] in dl:
-                logger.warning('A new filed ({}) detected!'.format(ks[0], dl))
+                logger.warning('A new filed ({}) detected!'.format(ks[0]))
             dl[ks[0]] = str2num(v)
         else:
+            if not ks[0] in dl:
+                logger.warning('A new filed ({}) detected!'.format(ks[0]))
+                dl[ks[0]] = {}
             override(dl[ks[0]], ks[1:], v)