[InvalidOperationException: Unable to generate a temporary class (result=1).
error CS0012: The type 'EPiServer.Security.SecurityEntityType' is defined in an assembly that is not referenced. You must add a reference to assembly 'EPiServer, Version=6.0.530.0, Culture=neutral, PublicKeyToken=8fe83dea738b45b7'.
error CS0030: Cannot convert type 'EPiServer.Security.SecurityEntityType []' to 'EPiServer.Security.SecurityEntityType [c:\Windows\assembly\GAC_MSIL\EPiServer.Framework\6.2.267.1__8fe83dea738b45b7\EPiServer.Framework.dll]'
error CS0029: Cannot implicitly convert type 'EPiServer.Security.SecurityEntityType [c:\Windows\assembly\GAC_MSIL\EPiServer.Framework\6.2.267.1__8fe83dea738b45b7\EPiServer.Framework.dll]' to 'EPiServer.Security.SecurityEntityType []'
]
   System.Xml.Serialization.Compiler.Compile(Assembly parent, String ns, XmlSerializerCompilerParameters xmlParameters, Evidence evidence) +1267
   System.Xml.Serialization.TempAssembly.GenerateAssembly(XmlMapping[] xmlMappings, Type[] types, String defaultNamespace, Evidence evidence, XmlSerializerCompilerParameters parameters, Assembly assembly, Hashtable assemblies) +2890
   System.Xml.Serialization.TempAssembly..ctor(XmlMapping[] xmlMappings, Type[] types, String defaultNamespace, String location, Evidence evidence) +125
   System.Xml.Serialization.XmlSerializer.GenerateTempAssembly(XmlMapping xmlMapping, Type type, String defaultNamespace) +144
   System.Xml.Serialization.XmlSerializer..ctor(Type type, String defaultNamespace) +545
   Dropit.Extension.Core.Serializer.Deserialize(String xml) +221
   Dropit.Extension.Controllers.PageDataManager.LoadSpecializedCommonData(PageReference rootLink) +164
   Dropit.Extension.Common.CategoryStorage.Load() +50
   Dropit.Extension.Controllers.CategoryManager.get_ExtensionCategories() +50
   Dropit.Extension.Controllers.CategoryManager.Initialize() +56
   Dropit.Extension.Common.GlobalSettings.InitializeSettings() +73
   Dropit.Extension.Handlers.InitializationModule.Initialize(InitializationEngine context) +32
   EPiServer.Framework.Initialization.InitializationEngine.InitializeModules() +859
   EPiServer.Framework.Initialization.InitializationEngine.Initialize(HostType hostType) +115
   EPiServer.Framework.Initialization.InitializationModule.Initialize(HostType hostType) +227
   EPiServer.Framework.Initialization.InitializationModule.FrameworkInitialization(HostType hostType) +56
   EPiServer.Global..ctor() +76
   ASP.global_asax..ctor() +9

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +146
   System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +298
   System.Activator.CreateInstance(Type type, Boolean nonPublic) +79
   System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +10362891
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +258
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +382

[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11305670
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4342340