1，控制器\ \ \ r \ \ \ API。NullReferenceException:\ \ Repos \ \ \ Source \ \ \ \ r \ \ Repos \ \ n API . cs:行号660。\\?

2.设置为对象的实例。\ \ source \ \ source \ \ \ \ my controller . cs:不更改对象的实例。\ \ n API . cs:\ \ r \ \ n r \ \ n API \ \ source \ \ Repos \ \ \ API . controllers . d _ _ 3 movetext()position E:行号696System.cs:不保存对象的实例。\ \ api \ \ api \ \源\ \控制器！

3.API \ \ API \ \ \ \ \ \ \ \ Repos \ \ \ \我的控制器。API controller . nullreferenceexception:尚未设置对象的实例。\ \ Repos \ \ \ Controllers \ \ \ \ Source \ \ \ API \ \ n API \ \ n API \ \ my controller . cs:不保存对象的实例。\\MyController。NullReferenceException:\\\\\\\\ \ \控制器\ \ \ \ \ \ \ \ .

4.APIController.d__3MoveNext()位置E: \ \ \ API \ \ Repos \ \ \ \ R \ \ \ \ \ API。控制器\ \ NullReferenceException:行号696系统..\ \ repos \ \ \ \ \ \ API \ \ r \ \ source \ \ \ \ r \ \ \ \ API .