U8登录 TQLoginHelper 调用目标发生异常

System. Reflection.TargetInvocationException:调用的目标发生了异常。
--- System.lO.FileNotFoundException: Could not load file or assembly
'securityAndCreditldentity,Version= 1.0.0.0,Culture=neutral,
PublicKeyToken=f161522a560143f5' or one of its dependencies.系统找不到指定的
文件。
在UFSof.U8.Framework.Login.Ul.clsLogin.InternalLogin(String pSubld,String
Userld,String Pwd,String appServer,String operDate,String dataSource,String
WorkStationSerial,Boolean ChangePwd,String NewPassword,Boolean
KickOutWorkStation,Boolean ShowLoginForm)
在UFSof.U8.Framework.Login.Ul.clsLogin.login(String pSubld,String Userld,
String Pwd,Boolean ShowLoginForm)
---内部异常堆栈跟踪的结尾---
在System. RuntimeMethodHandle. InvokeMethod(Object target,Object[]
arguments,Signature sig,Boolean constructor)
在System.Reflection.RuntimeMethodInfo.UnsafelnvokeInternal(Object obj,
Object[] parameters,Object[] arguments)
在System.Reflection.RuntimeMethodInfo.Invoke(Object obj,BindingFlags
invokeAttr,Binder binder,Object] parameters,CultureInfo culture)
在System.RuntimeType.InvokeMember(String name,BindingFlags bindingFlags,
Binder binder,Object target,Object] providedArgs,ParameterModifier[]
modifiers,CultureInfo culture,String[] namedParams)
在System.Type.InvokeMember(String name,BindingFlags invokeAttr,Binder
binder,Object[ args)
在UFIDA.TQ.U8CO.Common.DxComObject. DoMethod(String MethodName,
Object[] args)
在Ufida.TQ.U8CO.Login.TQLoginHelper.Login(String userCode,String
userPassword,String erpService,String loginDate,String accld)
在HuaJia ErpApi.U8Api. AddRds10JObject jo,String Accid,String constr)位置
F:ProjectNetProjectHuaiaErpApiU8Api.cs行号45
在
HuaJia.ApiAreas. api.Controllers. RdRecordController.Index(RequestRdRecord10
form)位置
F:ProjectNetProjectHuaiaHuaiaBarcodeHuaJia.ApiAreasapiControllersRd
RecordController.cs行号59

var tqLogin = TQLoginHelper.Login(sUserID,sPassword,sServer,sDate,Accid);