In a Windows Phone 7 Silverlight project, I had a service reference to a WCF service. This morning when I opened up the project, suddenly the namespaces for my WCF service were unknown. The option for “Update Service Reference” in Solution Explorer was not there, so I deleted the Service Reference with the intent of re-adding it. But the option for “Add Service Reference” is also not there. Gone. Disappeared.
Closed and re-opened the solution. Restarted VS2010 Ultimate. No dice. Anyone run across this?
I don’t know how this happends in the first place, so we don’t know the cause yet, but I found a solution to the problem.
Open your *.csproj file in Notepad or Textpad or something like that. Find where it has the tag. Replace that tag with this:
Close and re-open the project and the option to add service references will be usable.