Report Manager Error

I have seen this issue in other posts, but I've never seen a way to fix it.

When I try to access the Report Manager, I get the following:


Server Error in '/Reports' Application.


Could not load file or assembly 'ReportingServicesWebServer' or one of its dependencies. The system cannot find the file specified.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'ReportingServicesWebServer' or one of its dependencies. The system cannot find the file specified.

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 'ReportingServicesWebServer' could not be loaded.





WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLMSoftwareMicrosoftFusion!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 [HKLMSoftwareMicrosoftFusion!EnableLog].

Stack Trace:





[FileNotFoundException: Could not load file or assembly 'ReportingServicesWebServer' or one of its dependencies. The system cannot find the file specified.]
System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +211
System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +141
System.Reflection.Assembly.Load(String assemblyString) +25
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +32

[ConfigurationErrorsException: Could not load file or assembly 'ReportingServicesWebServer' or one of its dependencies. The system cannot find the file specified.]
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +596
System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +70
System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +177
System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +180
System.Web.Compilation.ApplicationBuildProvider.GetGlobalAsaxBuildResult(Boolean isPrecompiledApp) +3446629
System.Web.Compilation.BuildManager.CompileGlobalAsax() +51
System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +462

[HttpException (0x80004005): Could not load file or assembly 'ReportingServicesWebServer' or one of its dependencies. The system cannot find the file specified.]
System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +57
System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +612
System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +456

[HttpException (0x80004005): Could not load file or assembly 'ReportingServicesWebServer' or one of its dependencies. The system cannot find the file specified.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +3426855
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +149





Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42

I am using SSE2005 SP2

What can I do to fix this? This is a production server that is very precisely configured, so I can't just format and reinstall everything (this would take DAYS)

Please please help!!! : )