我已经在Visual Studio 2017和MySQL Version = 6.9.9.0中开发了具有完全信任级别的网站。现在我有了托管支持中等信任级别。因此，我想将网站从完全信任级别更改为中等信任级别。
版本信息：Microsoft .NET Framework版本：4.0.30319； ASP.NET版本：4.7.3190.0
我已经更改了我的web.config文件中的信任级别。
<trust level="Medium" />
还是，这给了我一些安全性错误。请给我一些指示，我需要在我的应用程序中进行哪些更改才能工作文件。
更改web.config文件中的信任级别后出错。
说明：应用程序尝试执行安全策略不允许的操作。要授予此应用程序所需的权限，请联系系统管理员或在配置文件中更改应用程序的信任级别。
异常详细信息：
System.Security.SecurityException：请求失败。
源错误：
在执行当前Web请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪来标识有关异常的来源和位置的信息。
堆栈跟踪：
[SecurityException: Request failed.]
System.Security.CodeAccessSecurityEngine.ThrowSecurityException(RuntimeAssembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandleInternal rmh, SecurityAction action, Object demand, IPermission permThatFailed) +96
System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Object assemblyOrString, PermissionSet granted, PermissionSet refused, RuntimeMethodHandleInternal rmh, SecurityAction action, Object demand, IPermission permThatFailed) +80
System.Security.CodeAccessSecurityEngine.CheckSetHelper(PermissionSet grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandleInternal rmh, Object assemblyOrString, SecurityAction action, Boolean throwException) +288
System.Security.CodeAccessSecurityEngine.CheckSetHelper(CompressedStack cs, PermissionSet grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandleInternal rmh, RuntimeAssembly asm, SecurityAction action) +70
System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type) +0
System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName) +70
System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark) +40
System.Type.GetType(String typeName) +30
System.CodeDom.Compiler.CompilerInfo.get_IsCodeDomProviderTypeValid() +12
System.Web.Compilation.CompilationUtil.GetRecompilationHash(CompilationSection ps) +2045
System.Web.Configuration.CompilationSection.get_RecompilationHash() +107
System.Web.Compilation.BuildManager.CheckTopLevelFilesUpToDateInternal(Int64 cachedHash) +458
System.Web.Compilation.BuildManager.CheckTopLevelFilesUpToDate(Int64 cachedHash) +51
System.Web.Compilation.BuildManager.ExecutePreAppStart() +135
System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +549
非常感谢。