Question

我已经将ASP.Net Web应用程序升级到最新版本的Fluent NHibernate（1.0.0.636）和最新版本的NHibernate（v2.1.2.4000）。我已经多次检查过该应用程序是以完全信任的方式运行的。但我不断收到以下错误：

Security Exception
Description: The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

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:

[SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
   System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
   System.Security.CodeAccessPermission.Demand() +54
   System.Reflection.Emit.DynamicMethod.PerformSecurityCheck(Type owner, StackCrawlMark& stackMark, Boolean skipVisibility) +269
   System.Reflection.Emit.DynamicMethod..ctor(String name, Type returnType, Type[] parameterTypes, Type owner, Boolean skipVisibility) +81
   NHibernate.Bytecode.Lightweight.ReflectionOptimizer.CreateDynamicMethod(Type returnType, Type[] argumentTypes) +165
   NHibernate.Bytecode.Lightweight.ReflectionOptimizer.GenerateGetPropertyValuesMethod(IGetter[] getters) +383
   NHibernate.Bytecode.Lightweight.ReflectionOptimizer..ctor(Type mappedType, IGetter[] getters, ISetter[] setters) +108
   NHibernate.Bytecode.Lightweight.BytecodeProviderImpl.GetReflectionOptimizer(Type mappedClass, IGetter[] getters, ISetter[] setters) +52
   NHibernate.Tuple.Component.PocoComponentTuplizer..ctor(Component component) +231
   NHibernate.Tuple.Component.ComponentEntityModeToTuplizerMapping..ctor(Component component) +420
   NHibernate.Tuple.Component.ComponentMetamodel..ctor(Component component) +402
   NHibernate.Mapping.Component.BuildType() +38
   NHibernate.Mapping.Component.get_Type() +32
   NHibernate.Mapping.SimpleValue.IsValid(IMapping mapping) +39
   NHibernate.Mapping.RootClass.Validate(IMapping mapping) +61
   NHibernate.Cfg.Configuration.ValidateEntities() +220
   NHibernate.Cfg.Configuration.Validate() +16
   NHibernate.Cfg.Configuration.BuildSessionFactory() +39
   FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs:93

有人有类似的错误吗？我已经访问了web / stackoverflow / NHibernate论坛，但只找到了在中等信任模式下运行时遇到问题的人，而不是完全信任。我已经在这台机器上使用以前版本的Fluent NHibernate和NHibernate在这个应用程序上开发了几个月。

我正在运行的机器是64位，你永远不知道这是相关的。

Answer 1

当您第一次下载新的DLL时，您可能遇到此问题，它可能不是同一个问题（任何使其不受信任的原因都会导致相同的错误）但是，它不止一次导致了我的确切错误。以下是如何让它像您的应用程序的其余部分一样以完全信任的方式运行：

右键单击新的nHibernate DLL（可能必须一次执行1次，不确定）
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（流畅）NHibernate安全例外 - ReflectionPermission

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