The “CreateRiaClientFilesTask” task failed unexpectedly

Question

I\'ve VS 2010 and recently installed WCF RIA Services V1.0. For testing I have created a new Silverligh Business project but now every now and then when I rebuild the solution I

Answer 1

Try to remove the DomainServices Assemblies (... References), then run "Clean" on the Project or better the whole Solution. Restart VS and add the Assemblies anew.