The service '/app/notificationsregistrationhandler.svc' cannot be activated due to an exception during compilation - genexus

Question

On developement site this REST web service works fine but on production site I get this error:
Server Error in '/app' Application.
The specified module could not be found. (Exception from HRESULT: 0x8007007E)
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: The specified module could not be found. (Exception from HRESULT: 0x8007007E)
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:
[FileNotFoundException: The specified module could not be found. (Exception from HRESULT: 0x8007007E)]
System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +43
System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +127
System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +142
System.Reflection.Assembly.Load(String assemblyString) +28
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46
[ConfigurationErrorsException: The specified module could not be found. (Exception from HRESULT: 0x8007007E)]
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613
System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +203
System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +105
>System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178
System.Web.Compilation.WebDirectoryBatchCompiler..ctor(VirtualDirectory vdir) +163
System.Web.Compilation.BuildManager.BatchCompileWebDirectoryInternal(VirtualDirectory vdir, Boolean ignoreErrors) +53
System.Web.Compilation.BuildManager.BatchCompileWebDirectory(VirtualDirectory vdir, VirtualPath virtualDir, Boolean ignoreErrors) +175
System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) +86
System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +261
System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +101
System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +83
System.Web.Compilation.BuildManager.GetCompiledCustomString(String virtualPath) +27
System.ServiceModel.HostingManager.GetCompiledCustomString(String normalizedVirtualPath) +134
System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +25
System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +42
System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +479
[ServiceActivationException: The service '/app/notificationsregistrationhandler.svc' cannot be activated due to an exception during compilation. The exception message is: The specified module could not be found. (Exception from HRESULT: 0x8007007E).]
System.ServiceModel.AsyncResult.End(IAsyncResult result) [phone]
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +194
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, Boolean flowContext) +176
System.ServiceModel.Activation.HttpHandler.ProcessRequest(HttpContext context) +23
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
web.config on development site is the same on production site (except for datasource connection info).
KB is developed using Genexus EV3 U3 and was migrated from EV2 U7
Development site is Windows 7 sp3 and production site is Windows Server 2008 R2
Production site works fine except for REST web services
URL Rewrite module is configured
anotificationsregistrationhandler.dll is on bin directory
What else can I check?

Answer 1

Could you please empty the following directories:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files
C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files
And then Restart IIS: cmd.exe "iisreset"

Answer 2

Besides de URL Rewrite Module, you must also enable the following Windows Features:
1).NET Framework 4.5 Advanced Services -> WCF Services -> HTTP Activation
2) Microsoft .NET Framework 3.5 -> Windows Communication Foundation HTTP-Activation