类型＆＃39; System.Reflection.TargetInvocationException＆＃39;的异常发生在mscorlib.dll中但未在用户代码中处理
附加信息：调用目标引发了异常。
public ApplicationDbContext（） ：base（＆＃34; DefaultConnection＆＃34;，throwIfV1Schema：false） 这是我的代码，其中异常在运行时显示。 我使用.net framework 4.5和sqlserver2008r2。 所以任何人都可以帮助我摆脱这个问题。
堆栈追踪：
[TypeLoadException：无法加载类型＆＃39; System.Data.Entity.Infrastructure.TableExistenceChecker＆＃39;来自assembly＆＃39; EntityFramework，Version = 6.0.0.0，Culture = neutral，PublicKeyToken = b77a5c561934e089＆＃39;。] System.Data.Entity.SqlServerCompact.Legacy.SqlCeProviderServices..ctor（）+ 0 System.Data.Entity.SqlServerCompact.Legacy.SqlCeProviderServices..cctor（）+44
[TypeInitializationException：＆System; System.Data.Entity.SqlServerCompact.Legacy.SqlCeProviderServices＆＃39;的类型初始值设定项。抛出异常。]
[TargetInvocationException：调用目标抛出了异常。]
System.RuntimeFieldHandle.GetValue（RtFieldInfo字段，Object实例，RuntimeType字段类型，RuntimeType declaringType，Boolean＆amp; domainInitialized）+0
System.Reflection.RtFieldInfo.UnsafeGetValue（Object obj）+124
System.Reflection.RtFieldInfo.InternalGetValue（Object obj，StackCrawlMark＆amp; stackMark）+132
System.Reflection.RtFieldInfo.GetValue（Object obj）+21
System.Data.Entity.Utilities.MemberInfoExtensions.GetValue（MemberInfo memberInfo）+132
System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance（Type providerType）+194
System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance（String providerTypeName，String providerInvariantName）+142
System.Data.Entity.Internal.AppConfig。＆lt; .ctor＆gt; b__2（ProviderElement e）+109
System.Linq.WhereSelectEnumerableIterator 2.MoveNext() +145
System.Collections.Generic.List 1..ctor（IEnumerable 1 collection) +460
System.Linq.Enumerable.ToList(IEnumerable 1 source）+58
System.Data.Entity.Internal.AppConfig。＆lt; .ctor＆gt; b__1（）+135
System.Lazy 1.CreateValue() +415
System.Lazy 1.LazyInitValue（）+152
System.Lazy 1.get_Value() +75
System.Data.Entity.Internal.AppConfig.get_DbProviderServices() +40
System.Data.Entity.Infrastructure.DependencyResolution.AppConfigDependencyResolver.RegisterDbProviderServices() +59
System.Data.Entity.Infrastructure.DependencyResolution.AppConfigDependencyResolver.GetServiceFactory(Type type, String name) +126
System.Data.Entity.Infrastructure.DependencyResolution.<>c__DisplayClass1.<GetService>b__0(Tuple 2 t）+110
System.Collections.Concurrent.ConcurrentDictionary 2.GetOrAdd(TKey key, Func 2 valueFactory）+72
System.Data.Entity.Infrastructure.DependencyResolution.AppConfigDependencyResolver.GetService（Type type，Object key）+210
System.Data.Entity.Infrastructure.DependencyResolution。＆lt;＆gt; c__DisplayClass3.b__0（IDbDependencyResolver r）+60
System.Linq.WhereSelectArrayIterator 2.MoveNext() +66
System.Linq.Enumerable.FirstOrDefault(IEnumerable 1 source，Func 2 predicate) +94
System.Data.Entity.Infrastructure.DependencyResolution.ResolverChain.GetService(Type type, Object key) +250
System.Data.Entity.Infrastructure.DependencyResolution.CompositeResolver 2.GetService（Type type，Object key）+63
System.Data.Entity.Infrastructure.DependencyResolution.DbDependencyResolverExtensions.GetService（IDbDependencyResolver resolver）+141
System.Data.Entity.DbContext.InitializeLazyInternalContext（IInternalConnection internalConnection，DbCompiledModel model）+124
System.Data.Entity.DbContext..ctor（String nameOrConnectionString）+103
Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext 6..ctor(String nameOrConnectionString) +37
Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext 1..ctor（String nameOrConnectionString，Boolean throwIfV1Schema）+45
Srismiles.Models.ApplicationDbContext..ctor（）在f：\ Srismiles \ Srismiles \ Srismiles \ Models \ IdentityModels.cs：32
fris中的Srismiles.Logic.RoleActions.AddUserAndRole（）：Srismiles \ Srismiles \ Srismiles \ Logic \ RoleActions.cs：17
Srismiles.Global.Application_Start（Object sender，EventArgs e）在f：\ Srismiles \ Srismiles \ Srismiles \ Global.asax.cs：29
[HttpException（0x80004005）：调用目标抛出了异常。] System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode（HttpContext context，HttpApplication app）+9935033 System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS（IntPtr appContext，HttpContext context，MethodInfo [] handlers）+118 System.Web.HttpApplication.InitSpecial（HttpApplicationState状态，MethodInfo []处理程序，IntPtr appContext，HttpContext上下文）+172 System.Web.HttpApplicationFactory.GetSpecialApplicationInstance（IntPtr appContext，HttpContext context）+336 System.Web.Hosting.PipelineRuntime.InitializeApplication（IntPtr appContext）+296
[HttpException（0x80004005）：调用目标抛出了异常。] System.Web.HttpRuntime.FirstRequestInit（HttpContext context）+9913572 System.Web.HttpRuntime.EnsureFirstRequestInit（HttpContext context）+101 System.Web.HttpRuntime.ProcessRequestNotificationPrivate（IIS7WorkerRequest wr，HttpContext context）+254
答案 0 :(得分：-2)
你一定要尝试做两件事：
我现在遇到了同样的问题，通过这些步骤解决了这个问题。