系统里单据打印出现问题，点开打印提示如下图会话中不存在数据源名称,请重

刘文莉RNr

在用友畅捷通T+财务管理软件的用友T+打印模块中碰到如下 问题，系统里单据打印出现问题，点开打印提示如下图，详细问题描述如下：
会话中不存在数据源名称,请重新登录Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: Ufida.T.EAP.ErrorInfo.SessionException: 会话中不存在数据源名称,请重新登录
Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[SessionException: 会话中不存在数据源名称,请重新登录]   Ufida.T.EAP.Dal.DBSessionFactory.getDsName() +385   Ufida.T.EAP.Print.Service.PrintSettingUpgrade.UpGradePrintSettingGlobal() +24[TypeInitializationException: The type initializer for 'Ufida.T.EAP.Print.Service.PrintService' threw an exception.]   Ufida.T.EAP.Print.Service.PrintService..ctor() +0[TargetInvocationException: Exception has been thrown by the target of an invocation.]   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +117   System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +247   System.Activator.CreateInstance(Type type, Boolean nonPublic) +106   Ufida.T.EAP.Aop.Util.InstancePool.getNormalObject(String interface_claszName) +891[ServiceException: 获取普通服务Ufida.T.EAP.Print.Interface.IPrintService出错:]   Ufida.T.EAP.Aop.Util.InstancePool.getNormalObject(String interface_claszName) +1283   Ufida.T.EAP.Aop.Dynamic.LocalCallDynamicProxyImpl.getObject(Type interfaceType, String className) +200   Ufida.T.EAP.Aop.Dynamic.LocalCallDynamicProxyImpl.Invoke(IMessage message) +368   System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) +1530   Ufida.T.EAP.Print.Interface.IPrintService.GetDefaultTemplateId(String userid, String printdirname, String printclass) +0   PrintPage.Page_Load(Object sender, EventArgs e) +1614   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25   System.EventHandler.Invoke(Object sender, EventArgs e) +0   System.Web.UI.Control.LoadRecursive() +95

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