I downloaded the beta version of Visual Studio 11 last night and started working on a new project, only now I can’t open the project using Visual Studio 2010, does anyone know about this or how to save the project in Beta for compatibility with "older versions" I looked and tried, but so far failed?
I have seen this several times at work recently. To solve this problem, you need to install Visual Studio 2010 SP1 .
Just open the solution in a text editor in the second line you can find
Microsoft Visual Studio Solution File, Format Version 12.00
11.00 .
11.00
, .
: . Visual Studio, . . VS 2010 11.00, 10.00, .
10.00
VS11 VS10 - " , ".
.sln( "Format Version 12.00" "Format Version 11.00" )