Could not load file or assembly 'EPiServer.Framework' - asp.net

Question

Im getting this exception when configuring EPi CMS 5 to run under IIS7.5.
Exception Details: System.IO.FileNotFoundException: Could not load
file or assembly 'EPiServer.Framework' or one of its dependencies.
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.
Assembly Load Trace: The following information can be helpful to determine why the assembly 'EPiServer.Framework' could not be loaded.
WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value
[HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There
is some performance penalty associated with assembly bind failure
logging. To turn this feature off, remove the registry value
[HKLM\Software\Microsoft\Fusion!EnableLog].
Stack Trace:
[FileNotFoundException: Could not load file or assembly 'EPiServer.Framework' or one of its dependencies. Det går inte att
hitta filen.] System.RuntimeTypeHandle.GetTypeByName(String name,
Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly,
StackCrawlMarkHandle stackMark, Boolean loadTypeFromPartialName,
ObjectHandleOnStack type) +0
System.RuntimeTypeHandle.GetTypeByName(String name, Boolean
throwOnError, Boolean ignoreCase, Boolean reflectionOnly,
StackCrawlMark& stackMark, Boolean loadTypeFromPartialName) +95
System.RuntimeType.GetType(String typeName, Boolean throwOnError,
Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)
+54 System.Type.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) +65
System.Web.Compilation.BuildManager.GetType(String typeName, Boolean
throwOnError, Boolean ignoreCase) +69
System.Web.Configuration.ConfigUtil.GetType(String typeName, String
propertyName, ConfigurationElement configElement, XmlNode node,
Boolean checkAptcaBit, Boolean ignoreCase) +52
[ConfigurationErrorsException: Could not load file or assembly 'EPiServer.Framework' or one of its dependencies. Det går inte att
hitta filen.] System.Web.Configuration.ConfigUtil.GetType(String
typeName, String propertyName, ConfigurationElement configElement,
XmlNode node, Boolean checkAptcaBit, Boolean ignoreCase) +360
System.Web.Configuration.ConfigUtil.GetType(String typeName, String
propertyName, ConfigurationElement configElement, Boolean
checkAptcaBit) +27
System.Web.Configuration.Common.ModulesEntry.SecureGetType(String
typeName, String propertyName, ConfigurationElement configElement) +44
System.Web.Configuration.Common.ModulesEntry..ctor(String name, String
typeName, String propertyName, ConfigurationElement configElement) +52
System.Web.HttpApplication.BuildIntegratedModuleCollection(List`1
moduleList) +200
System.Web.HttpApplication.GetModuleCollection(IntPtr appContext)
+1365 System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr
appContext, HttpContext context, MethodInfo[] handlers) +95
System.Web.HttpApplication.InitSpecial(HttpApplicationState state,
MethodInfo[] handlers, IntPtr appContext, HttpContext context) +194
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr
appContext, HttpContext context) +339
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr
appContext) +253
[HttpException (0x80004005): Could not load file or assembly 'EPiServer.Framework' or one of its dependencies. Det går inte att
hitta filen.] System.Web.HttpRuntime.FirstRequestInit(HttpContext
context) +9080108
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest
wr, HttpContext context) +256

Answer 1

Check the /Bin folder of your application and see if the EPiServer.Framework DLL is there. If it isn't you can set the DLL to "Copy Local" by right clicking on it in the References folder within Solution Explorer and selecting Properties, then set Copy Local to "true". Now when you build the solution, the DLL will be copied from it's reference location into the Bin folder. You may need to do this for all the EPiServer DLLs.
I've experienced this in the past and even when "Specific Version" is enabled there are still issue loading the correct DLLs. One way we solved it was to copy all the EPiServer DLLs into a Lib folder in our solution directory and add the references to those DLLs, keeping Specific Version and Copy Local set to true.