Improve compatibility checking

[govpp.git] / adapter / vppapiclient / vppapiclient.go

diff --git a/adapter/vppapiclient/vppapiclient.go b/adapter/vppapiclient/vppapiclient.go
index fcd3f3f..977f32d 100644 (file)
--- a/adapter/vppapiclient/vppapiclient.go
+++ b/adapter/vppapiclient/vppapiclient.go
@@ -116,7 +116,7 @@ func (a *vppClient) GetMsgID(msgName string, msgCrc string) (uint16, error) {
        msgID := uint16(C.govpp_get_msg_index(nameAndCrc))
        if msgID == ^uint16(0) {
                // VPP does not know this message
-               return msgID, fmt.Errorf("unknown message: %v (crc: %v)", msgName, msgCrc)
+               return msgID, &adapter.UnknownMsgError{msgName, msgCrc}
        }
 
        return msgID, nil