can not open VS2005 solution file

Question

I have a visual studio 2005 solution with many projects. Yesterday I was able to open it normally. Today, when I double click on it, I get the following error message:

The selected file is a Visual Studio solution file, but was created by a newer version of Visual Studio and can not be opened.

Please help.

Answer 1

Sounds like you, or someone, opened the file in VS 2008/2010. The solution file has been upgraded. You can create a new solution, add the projects, of course in 2005.

Answer 2

I right clicked on sln file and used Visual studio version selector to open the file and it was successful.