Can't find cause of code generation exception

I have a silverlight/asp.net project. I cannot build because of this error:

The code generator 'Microsoft.ServiceModel.DomainServices.Tools.CSharpCodeDomClientCodeGenerator' encountered a fatal exception and could not generate code for project Exception has been thrown by the target of an invocation

The only thing I've found on this are:

How ca开发者_开发知识库n I get details about a Silverlight code generation exception?

Exception thrown by the target of an invocation in Microsoft.RIA.Client.targets

Those resources aren't helping me, though. How can I determine the cause of this exception?