While working with the Silverlight Business Application template in Visual Studio 2010 RC I discovered a peculiar issue that if the project specified as the "WCF RIA Services Link" for the Silverlight Project can not be found a compile time error of "Project File ... Not Found" will be generated. This is a very cryptic error message since it's the same message that gets thrown if you delete a Project File (.csproj or .vbproj) from the hard drive but it's still references within the Solution File... [More]
Update 9/16/2008: After too long, I finally tried uninstalling SP1 and reinstalling it and that fixed the issue. I'm glad it's fixed now! I haven't seen any other suggestions for fixing this, and I first tried repairing the installation, but only an uninstall and reinstall fixed it. Hope this helps solves anyone elses headache with this issue.
A few months ago (back in February actually) I blogged showing how to use the new DataContractJsonSerializer to serialize your .NET objects to JSON... [More]