X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvpp-api%2Fpython%2Fvpp_papi.py;h=14f367c23369ba4578ac01810ddfe99f71c2d33e;hb=68ec940a469be5e1696fa6bb8dd4cea54d092796;hp=55dda1044b6e46e1c0df93c9692a72bd9677c507;hpb=4b0ac82a739bf7f1233ebb61269e27aa4cf9ab36;p=vpp.git

diff --git a/src/vpp-api/python/vpp_papi.py b/src/vpp-api/python/vpp_papi.py
index 55dda1044b6..14f367c2336 100644
--- a/src/vpp-api/python/vpp_papi.py
+++ b/src/vpp-api/python/vpp_papi.py
@@ -246,7 +246,10 @@ class VPP():
 
         for k in kwargs:
             if k not in msgdef['args']:
-                raise ValueError(1, 'Invalid field-name in message call ' + k)
+                raise ValueError(1,'Non existing argument [' + k + ']' + \
+                                 ' used in call to: ' + \
+                                 self.id_names[kwargs['_vl_msg_id']] + '()' )
+
 
         for k, v in vpp_iterator(msgdef['args']):
             off += size