Original post at my blog As if usual problems arent complex enough my Visual Studio 2005 stopped displaying DataSet's that were designed and were working very recently. When I open my visual studio solution / project which already has an DataSet open I will get the following error dialog [ Load DataSet Error Failed to load dataset because of the following error: Value cannot be null. Parameter name: project ] and the following error message One or more errors encountered while loading the designer....
Change the minRequiredNonAlphanumericC... to minRequiredNonalphanumericC... Local MSDN document not up-to-date