WCF Basic Sample fails with err "This collection already contains an address with scheme http."

[jtbjurstrom]

I'm new to WCF as well as services and am having trouble running the
WCF samples. We've chosen to pursue the WCF model to communicate from
a client WinForm GUI to a service running within a LAN. We plan on
using the TCP protocol for communication. I've been trying to run the
Basic WCF sample and have been getting the error:

"This collection already contains an address with scheme http. There
can be at most one address per scheme in this collection."

I have gone through the one time setup procedures that is provided in
msdn as well as the troubleshooting guide. I also haven't found
anything related to error message above anywhere. The stack trace
shows that it throws when creating the ServiceHost. The error is
actually coming from the UriSchemeKeyedCollection class. I have also
tried to navigate to http://localhost/servicemodelsamples/service.svc
and receive the same error.

Any help would be very appreciated.
Thank You
Jayson

 

[jtbjurstrom]

I figured out the issue. My IIS had multiple base addresses it was
providing. I removed the unnecessary websites in the "Advanced
Multiple Web Site Configuration" dialog.
Jayson

 

[Mark A. Richman]

You probably have more than one host header bound to the site in IIS.
I have this same problem, and can only find this hack:

http://www.robzelt.com/blog/PermaLink.aspx?guid=b53a709e-cd21-460f-a33b-c7a8e02e8bd6

- Mark