The Type xx provided as the Service attribute value in the ServiceHost directive

Question

Error while even browsing to http://xxx/mysite/_vti_bin/service/service.svc

The Type NameSpace.Classx, AssemblyName, Version=1.1.1.1, Culture=neutral, PublicKeyToken=xxx 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 gac /l I found exactly the assembly as on screen
• the interface NameSpace.iInterface is exactly stated in the servicecontract file
• the main NameSpace.Classx is exactly as stated
• assemblyInfo.cs has exactly the AssemblyName as stated
• I deploy this via a solution to the ISAPI/myfolder under SP so no need to change virtualdir/application settings
• Changed the project output path to /bin fom /bin/x86
• I can see that the files are deployed in the physical /ISAPI/myfolder
• Clean, delete bin and obj folders , build, deploy
• Also tried making a /bin folder under there and putting the assembly in there
• The rest service targets .Net 4.5 (as that is SP2013 required)

This is happening since yesterday, as far as I know I didn't change a thing. What DID happen since yesterday however that that debugging the WCF Rest service no longer worksed (debug > IE opens > never jumps to Visual Studio), after a while... this happened.

• ref: WCF, Service attribute value in the ServiceHost directive could not be found
• ref: The type 'SomeService', provided as the Service attribute value in the ServiceHost directive could not be found

Answer 1

将程序集更改为可编译为x86，将其设置回64位编译时，该错误已解决。