February 11, 2009
I'm using LLBLGen Pro on one of my projects. Sometimes (but not always) after regenerating the LLBLGen project, I get the dreaded "The Project file '' has been renamed or is no longer in the solution." when I next open the solution and try to build. This has to be one of the most useless and frustrating messages Visual Studio can kick up.
Aside from cleverly omiting the name of the offending project, this message throws us a send curveball by implying that the problem is the solution (when the solution can't find the project, it displays a warning when you open the solution and shows the missing project grayed out with "(unavailable)" next to it.
The message in this case is actually coming from one of the other projects in the solution, most likely a web project. To fix it, right-click the web project and select "Property Pages". When properties page displays, look in the refences list for items makrked missing.
Remove any missing references (and re-add if approppriate). The solution should then build fine.
Applies to: Visual Studio 2008