SqlSugar Oracle调用存储过程 PLS-00306: 调用 'SP_STUDENT' 时参数个数或类型错误 返回

Create or replace procedure sp_student

(

   --参数

   p_stuName in Nvarchar2,        --类型

   p_cursor  out Sys_Refcursor --返回结果集

 )

is

begin

     open p_cursor for 

     Select a.id,a.name,b.name As ScholName,c.name As subName,c.print

     From student a

    Inner Join school b On a.sch_id=b.id

    Inner Join subject c On c.studentid=a.id

    Where 1=1 And a.name=p_stuName;

end;

  List<SugarParameter> pars = new List<SugarParameter>();

   pars.Add(new SugarParameter("@p_stuName", "小杰"));

   pars.Add(new SugarParameter("@p_cursor", "", true));

   var dt4 = db.Ado.UseStoredProcedure().GetDataTable("sp_student", pars);

在Oracle中测试存储过程是Ok的，代码SqlSugar调用存储过程一直报错