WCF Service the type provided as the service attribute values could not be found

Question

When I right click on Eval svc within Visual Studio 2012 and view in browser  I get the following -      The type  EvalServiceLibary Eval   provided as the Service attribute value in the ServiceHost directive  or provided in the configuration element system serviceModel serviceHostingEnvironment serviceActivations could not be found    When I run the WCF service from the test client  all works fine   Eval service    ServiceBehavior InstanceContextMode   InstanceContextMode Single   public class EvalService   IEvalService       Dictionary lt string  JobPhaseTimer gt  jobTimers   new Dictionary lt string  JobPhaseTimer gt          public void SubmitEntry ENBO Jobs Job job  ENBO Jobs JobDetail jobDetail  ENBO TimeLogs TimeLog timeLog  ENBO Users User user  ENBO Utilities EntryType entryType  JobPhase jobPhase                if  entryType    EntryType Active                        JobPhaseTimer timer   new JobPhaseTimer                timer UID   job ID         jobPhase ID              timer JobID   job ID              timer JobDetailID   jobDetail ID              timer PhaseID   jobPhase ID              timer StartTime   DateTime Now              timer Stopwatch Start                jobTimers Add timer UID  timer                TimeLog log   new TimeLog                log JobID   job ID              log PhaseID   jobPhase ID              log UserID   user ID              log DateEntry   DateTime Now              log EntryType   EntryType Active               if  log AddNewTimeLog                                    Do something                                 else if  entryType    EntryType Paused                        JobPhaseTimer timer   jobTimers job ID         jobPhase ID               timer Stopwatch Stop                 TimeLog log   new TimeLog                log JobID   job ID              log PhaseID   jobPhase ID              log UserID   user ID              log DateEntry   DateTime Now              log EntryType   EntryType Paused               if  log AddNewTimeLog                                    Do something                                   IEvalService cs  Service Contract    ServiceContract  public interface IEvalService        OperationContract      void SubmitEntry Job job  JobDetail jobDetail  TimeLog timeLog  User user  EntryType entryType  JobPhase jobPhase       Eval svc markup     lt    ServiceHost Language  C   Debug  true  Service  EvalServiceLibary Eval    gt    Web config     lt  xml version  1 0   gt   lt configuration gt      lt appSettings gt       lt add key  aspnet UseTaskFriendlySynchronizationContext  value  true    gt     lt  appSettings gt     lt system web gt       lt compilation debug  true  targetFramework  4 5    gt       lt httpRuntime targetFramework  4 5   gt     lt  system web gt     lt system serviceModel gt       lt services gt         lt service name  EvalServiceLibary EvalService  gt           lt endpoint address    behaviorConfiguration    binding  webHttpBinding        contract  EvalServiceLibary IEvalService    gt           lt endpoint address    binding  basicHttpBinding  bindingConfiguration          contract  EvalServiceLibary IEvalService    gt         lt  service gt       lt  services gt       lt behaviors gt         lt endpointBehaviors gt           lt behavior name  EvalServiceSite EvalAspNetAjaxBehavior  gt             lt enableWebScript   gt           lt  behavior gt         lt  endpointBehaviors gt         lt serviceBehaviors gt           lt behavior name    gt             lt serviceMetadata httpGetEnabled  true  httpsGetEnabled  true    gt             lt serviceDebug includeExceptionDetailInFaults  false    gt           lt  behavior gt         lt  serviceBehaviors gt       lt  behaviors gt       lt protocolMapping gt           lt add binding  basicHttpsBinding  scheme  https    gt       lt  protocolMapping gt           lt serviceHostingEnvironment aspNetCompatibilityEnabled  true        multipleSiteBindingsEnabled  true    gt     lt  system serviceModel gt     lt system webServer gt       lt modules runAllManagedModulesForAllRequests  true   gt       lt directoryBrowse enabled  true   gt     lt  system webServer gt   lt  configuration gt    Any ideas why I am getting this error  I have searched Google and come across a few pages but nothing seems to work   Thanks

User · Answer

This is an old bug  but I encountered it today on a web service which had barely been altered since being created via  New   Project     For me  this issue was caused by the  IService cs  file containing the following    lt    ServiceHost Language  C   Debug  true  Service  JSONWebService Service1 svc  CodeBehind  Service1 svc cs    gt    Notice the value in the Service attribute contains   svc  at the end   This shouldn t be there   Removing those 4 characters resolved this issue    lt    ServiceHost Language  C   Debug  true  Service  JSONWebService Service1  CodeBehind  Service1 svc cs    gt    Note that you need to open this file from outside of Visual Studio   Visual Studio shows one file  Service1 cs in the Solution Explorer  but that only lets you alter Service1 svc cs  not the Service1 svc file

User · Answer

I had this error when I had the current build configuration in Visual Studio set to something other than Debug

User · Answer

I changed the output path of the service  it should be inside bin folder of the service project  Once I put the output path back to bin  it worked

User · Answer

I also had same problem  Purposely my build output path was     bin  and it works for me when I set the build output path as   bin

User · Answer

In my case I did a  Convert to application  to the wrong folder on iis  My application was set in a subfolder of where it should have been

User · Answer

Change the following line in your Eval svc file from     lt    ServiceHost Language  C   Debug  true  Service  EvalServiceLibary Eval    gt     to     lt    ServiceHost Language  C   Debug  true  Service  EvalServiceLibary EvalService    gt

User · Answer

Faced this exact issue  The problem resolved when i changed the Service  Namespace ServiceName  tag in the Markup  right click xxxx svc and select View Markup in visual studio  to match the namespace i used for my xxxx svc cs file

User · Answer

When you create an IIS application only the  bin or  App Code folder is in the root directory of the IIS app   So just remember put all the code in the root  bin or  App code directory  see http   blogs msdn com b chrsmith archive 2006 08 10 wcf-service-nesting-in-iis aspx   Make sure that the service name and the contract contain full name e g namespace ClassName   and the service name and interface is the same as the name attribute of the service tag and contract of endpoint in web config

User · Answer

I had the same problem  Make sure you include assembly name in Factory property in your  svc file  Maybe you need to clean IIS cache if you had renamed project assembly name

User · Answer

Double check projects  net versions  Projects that referenced each other with different  net versions causes problems

User · Answer

Turns out that the Eval svc cs needed its namespace changed to EvalServiceLibary  rather than EvalServiceSite

User · Answer

Ensure that binary files are under  bin  subdirectory of your   svc  file

User · Answer

Right click on the  svc file in Solution Explorer and click View Markup    lt    ServiceHost Language  C   Debug  true        Service  MyService   GetHistoryInfo          CodeBehind  GetHistoryInfo svc cs    gt    Update the service reference where you are referring to

User · Answer

I just hit this issue myself  and neither this nor any of the other answers on the net solved my issue  For me it was a strange one whereby the virtual directory had been created on a different branch in another source control server  basically  we upgraded from TFS 2010 to 2013  and the solution somehow remembered it s mapping   Anyway  I clicked the  Create Virtual Directory  button again  in the Properties of the Service project  It gave me a message about being mapped to a different folder and would I like to update it  I clicked yes  and that fixed the issue

[c#] WCF Service, the type provided as the service attribute values…could not be found

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