We are building an application in Silverlight 2 using WCF for data access. Everything has been going fairly well, but one of the developers on my team came across this error trying to insert some data: "The remote server returned an error: NotFound" Now the error seems to suggest that there is something wrong with the service. Binding isn't correct, something wrong with the contract interrface, etc. If you've ever tried to debug a silverlight applicatino, you know you can't attach to it with something...

Received an error Could not load file or assembly 'PresentationCore' when trying to deploy and run a WCF service project. It had been working fine for months without issue. Turns out that the PresentationCore.dll had somehow been copied to the bin directory. Removed this file and the site worked. Still trying to figure out how/when this occured in the build

Running Windows Vista 64 bit, Sql Server 2008 on a remote server. Using ASP.Net and the Report Viewer control on an asp.net page for a local report. Was also using IIS to host the web site instead of using the web server built into Visual Studio 2008. Searched and tried everything I could find on the net trying to fix this freaking error. On a whim (and because I didn't know what else to do and was trying everything I could think of) changed the IIS 7.0 app pool to the classic app pool. Angels came...