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12 Aug 2008
Fusion Log Viewer (FusLogVw) can also help in these circumstances - always one of the first tools I bring out to see what Fusion is up to..
06 Jan 2009
Thanks Josh. This was really stumping me, using your ASPX route pointed out the missing reference I had. You gotta love WCF error messaging!
12 Jan 2009
Thanks Josh! In trying to find out why asp.net couldn't find my assembly, I tried your code - and the surprising thing is that it didn't throw an exception! I'm still getting a "The type 'YourType', provided as the Service attribute value in the ServiceHost directive could not be found." error, and I have no idea why.
I see that you used the both the service type and assembly name in your ServiceHost directive, separated by ", " - I have tried that also, but I end up getting the following error:
"An error occurred during the parsing of a resource required to service this request ... The required directive 'ServiceHost' is missing."
Any suggestions? My .svc looks like this:
<%@ServiceHost Service=”BWC.NetServices.Ordering.OrderService, BWC.NetServices.Ordering” %>
Thanks in advance!
12 Jan 2009
Doh! Nevermind... Somehow I was using quotes like ”, as opposed to " :D.
26 Feb 2009
Thanks for the insight!
What is the missing assembly that is required in the GAC?
Best regards, Rob
07 Apr 2009
Actually, the parameters are ("Assembly", "Type"). :)
22 May 2009
I had a similar problem that required me to do two things in order to resolve it:
1.) the dll that my web service project created had to be dragged over to the bin directory of the web-site-to-which-I-was-deploying. (The reason I hadnt done this was that "Microsoft .NET Framework 3.5 - Windows Communication Foundation" (p.106) had said that was optional.
2.) when it came time to create a Service Reference in the VS 2008 I was using the IP number like http://126.96.36.199/Service1.svc/wsdl
and I needed to use http://www.MyDomainName.com/Service1.svc?wsdl
btw, I got that correct url when I browsed to http://188.8.131.52/Service1.svc
The IP worked in that case.
29 May 2009
thanks, useful tip
27 Jul 2009
Does this method really work?
I just used in my WCF test and all in GAC. I compiled a DLL called "IHelloWorldService.ll"
and test.aspx always complianed
<%@ Page Language="C#" Debug="true" %>
<%@ Import Namespace="System.Runtime.Remoting" %>
ObjectHandle oh = Activator.CreateInstance("IHelloWorldService.dll", "IHelloWorldService");
Response.Write(oh.Unwrap().ToString() + " loaded OK");
System.IO.FileNotFoundException: Could not load file or assembly 'IHelloWorldService.dll' or one of its dependencies. The system cannot find the file specified.
04 Nov 2009
I added your code and I got a message
Assembly loaded OK
Not sure why the error is coming while I am trying to run WCF
15 Nov 2009
hi ,i met the erroe today,may be you can try add the the the refrence of dll file which implement the ServiceContract
15 Sep 2010
Thanks! You saved my day.
12 Oct 2010
This post just kept me from insanity. Thanks
29 Nov 2010
Thanks , it solved my problem
19 Aug 2011
I also had the same issue. I checked with the namespace, interface, te class wich implements that particular service to check if there is any name mismatch, but everything was correct and still i had the issue. Finally i identified that the DLL(assembly whic has thhe implementation for this service) reference was missing in the project where i had the .SVC file ten i added the dll reference and the problem was resolved. Basically this is an example. i ave 2 projects 1 is the servicehost project which host all the services and the 2nd project has the implementation for all services. So, in the 1st project there should be a ALL reference to the second project when the service (.SVC) is hosted in browser as it expects the reference to the original class which implements the service.
06 Dec 2011
Parameters to the method CreateInstance are in the wrong order. CreateInstance("YourAssemblyName", "YourTypeName")
17 Jan 2012
Thanks to Richard (commenter) and Clark Roberts for the fix to the CreateInstance parameter order.