空错误新增堆栈信息判定

v2alpha/public.go

@@ -92,8 +92,8 @@ func ParseCode(err error) *withCode {
 	var target *withCode
 	if !As(err, &target) {
 		return &withCode{
-			cause:        err,
-			Msg:          defaultErrCode.Message,
+			cause:        nil,
+			Msg:          err.Error(),
 			HttpCode:     defaultErrCode.HttpCode,
 			BusinessCode: defaultErrCode.BusinessCode,
 		}