diff --git a/modules/modelarts/resty.go b/modules/modelarts/resty.go
index 32fd6e32f..df020decb 100755
--- a/modules/modelarts/resty.go
+++ b/modules/modelarts/resty.go
@@ -23,7 +23,7 @@ const (
 
 	urlGetToken = "/v3/auth/tokens"
 	urlNotebook = "/demanager/instances"
-	urlQueryNotebook = "/demanager/instances"
+	errorCodeExceedLimit = "ModelArts.0118"
 )
 func getRestyClient() *resty.Client {
 	if restyClient == nil {
@@ -121,7 +121,7 @@ sendjob:
 
 	if len(response.ErrorCode) != 0 {
 		log.Error("CreateJob failed(%s): %s", response.ErrorCode, response.ErrorMsg)
-		if response.ErrorCode == "ModelArts.0118" {
+		if response.ErrorCode == errorCodeExceedLimit {
 			response.ErrorMsg = "所选规格使用数量已超过最大配额限制。"
 		}
 		return &result, fmt.Errorf("CreateJob failed(%s): %s", response.ErrorCode, response.ErrorMsg)