[TypeLoadException: Could not load type from string value 'DirectCenter.DAL.UserDao, DirectCenter.DAL'.]
   Spring.Core.TypeResolution.TypeResolver.Resolve(String typeName) +224
   Spring.Core.TypeResolution.GenericTypeResolver.Resolve(String typeName) +309
   Spring.Core.TypeResolution.CachedTypeResolver.Resolve(String typeName) +229
   Spring.Core.TypeResolution.TypeResolutionUtils.ResolveType(String typeName) +41
   Spring.Objects.Factory.Support.AbstractObjectDefinition.ResolveObjectType() +35
   Spring.Objects.Factory.Support.AbstractObjectFactory.ResolveObjectType(RootObjectDefinition rod, String objectName) +71

[CannotLoadObjectTypeException: Cannot resolve type [DirectCenter.DAL.UserDao, DirectCenter.DAL] for object with name 'UserDao' defined in assembly [DirectCenter.App, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null], resource [DirectCenter.App.Dao.xml]]
   Spring.Objects.Factory.Support.AbstractObjectFactory.ResolveObjectType(RootObjectDefinition rod, String objectName) +137
   Spring.Objects.Factory.Support.DefaultListableObjectFactory.PreInstantiateSingletons() +267
   Spring.Context.Support.AbstractApplicationContext.Refresh() +512
   Spring.Context.Support.WebApplicationContext..ctor(String name, Boolean caseSensitive, IApplicationContext parentContext, String[] configurationLocations) +66
   Spring.Context.Support.WebApplicationContext..ctor(String name, Boolean caseSensitive, String[] configurationLocations) +17

[TargetInvocationException: 调用的目标发生了异常。]
   System.RuntimeMethodHandle._InvokeConstructor(Object[] args, SignatureStruct& signature, IntPtr declaringType) +0
   System.RuntimeMethodHandle.InvokeConstructor(Object[] args, SignatureStruct signature, RuntimeTypeHandle declaringType) +15
   System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +249
   Spring.Util.ObjectUtils.InstantiateType(ConstructorInfo constructor, Object[] arguments) +229

[FatalReflectionException: Cannot instantiate Type [Spring.Context.Support.WebApplicationContext] using ctor [Void .ctor(System.String, Boolean, System.String[])] : '调用的目标发生了异常。']
   Spring.Util.ObjectUtils.InstantiateType(ConstructorInfo constructor, Object[] arguments) +378
   Spring.Context.Support.RootContextInstantiator.InvokeContextConstructor(ConstructorInfo ctor) +108
   Spring.Context.Support.ContextInstantiator.InstantiateContext() +34
   Spring.Context.Support.ContextHandler.InstantiateContext(IApplicationContext parentContext, Object configContext, String contextName, Type contextType, Boolean caseSensitive, String[] resources) +106
   Spring.Context.Support.WebContextHandler.InstantiateContext(IApplicationContext parent, Object configContext, String contextName, Type contextType, Boolean caseSensitive, String[] resources) +268
   Spring.Context.Support.ContextHandler.Create(Object parent, Object configContext, XmlNode section) +265

[ConfigurationErrorsException: Error creating context 'spring.root': Could not load type from string value 'DirectCenter.DAL.UserDao, DirectCenter.DAL'.]
   System.Configuration.BaseConfigurationRecord.EvaluateOne(String[] keys, SectionInput input, Boolean isTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult) +202
   System.Configuration.BaseConfigurationRecord.Evaluate(FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult, Boolean getLkg, Boolean getRuntimeObject, Object& result, Object& resultRuntimeObject) +1061
   System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject) +1431
   System.Configuration.BaseConfigurationRecord.GetSection(String configKey, Boolean getLkg, Boolean checkPermission) +56
   System.Configuration.BaseConfigurationRecord.GetSection(String configKey) +8
   System.Web.HttpContext.GetSection(String sectionName) +47
   System.Web.Configuration.HttpConfigurationSystem.GetSection(String sectionName) +39
   System.Web.Configuration.HttpConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String configKey) +6
   System.Configuration.ConfigurationManager.GetSection(String sectionName) +78
   Spring.Util.ConfigurationUtils.GetSection(String sectionName) +50
   Spring.Context.Support.WebApplicationContext.GetContextInternal(String virtualPath) +829
   Spring.Context.Support.WebApplicationContext.GetRootContext() +84
   Spring.Context.Support.WebSupportModule.Init(HttpApplication app) +372
   System.Web.HttpApplication.InitModulesCommon() +65
   System.Web.HttpApplication.InitModules() +43
   System.Web.HttpApplication.InitInternal(HttpContext context, HttpApplicationState state, MethodInfo[] handlers) +729
   System.Web.HttpApplicationFactory.GetNormalApplicationInstance(HttpContext context) +298
   System.Web.HttpApplicationFactory.GetApplicationInstance(HttpContext context) +107
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +289