diff --git a/platformapi/dingdingapi/callback.go b/platformapi/dingdingapi/callback.go
index 40afb86f..d34e4a59 100644
--- a/platformapi/dingdingapi/callback.go
+++ b/platformapi/dingdingapi/callback.go
@@ -77,6 +77,8 @@ func (a *API) PackCallbackResult(result string) (response *CallbackResponse) {
 			Nonce:     utils.GetUUID(),
 		}
 		response.MsgSignature = a.calculateCallbackSign(utils.Struct2MapByJson(response))
+	} else {
+		fmt.Println("err", err)
 	}
 	return response
 }