You can open it by Visual Studio 2003 only. resiprocate wrote: > I was got the resiprocate project files by SVN, I found a > reSIProcate_7_1.sln file, but when I open it by Visual studio 2002, > got a error:The selected file is not a valid Visual Studio solution > file. > > what shall I do ? > > thanks !!! > 2005.10.26 > >