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How can I downgrade a Visual Studio 2015 solution file to the 2013 solution file that opens natively in Windows? Or, how can I get the Visual Studio Version selector to open the 2015 solution file after I would have uninstalled 2015 RC?

FSB
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2 Answers2

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Did you try this solution? Just try to change "Format Version" in first line of .sln file (Visual Studio 2012 has 12.00, so I assume 2013 is 13.00)

Community
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Sebastian Budka
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  • In my work I use it quite often because we use different versions of VS. That's why I posted this solution as answer. Yet I don't know if @FSB tried it. – Sebastian Budka Feb 29 '16 at 10:01
  • Sure, no need to explain. I've only asked because your answer refers to VS13-12 and I'm not sure if it would also work for VS15-13. – Eric Omine Mar 03 '16 at 16:54
  • I had to edit my project files (I believe c++ is the same as c#). See my answer – Assimilater May 24 '16 at 18:59
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For C++ project the procedure is kind of similar:

Edit your .vcxproj file and change the ToolsVersion to 13.0 and all instances of <PlatformToolset>v140</PlatformToolset> to v120

<Project DefaultTargets="Build" ToolsVersion="13.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
...
<PlatformToolset>v120</PlatformToolset>

Edit: I found that you can change the platform toolset via the properties of the project (perhaps less prone to error)

Right click on your project and go to General -> Platform Toolset, change to Visual Studio 2013 (v120).

Assimilater
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  • As far as I'm concerned `.vcxproj` file is exclusive for C++ projects (or just C# projects doesn't have one). I didn't check your solution on C++, but it won't work with C#. – Sebastian Budka Jun 29 '16 at 07:04
  • Right...in `C#` projects it's `.csproj`. I guess the OP would have had to specify whether they were working in `c++` or `c#`. Since this is given a generic `visual-studio` tag it might be beneficial to have both versions.... – Assimilater Jun 29 '16 at 15:19
  • Of course you're right, my bad. I don't know why I was so fixed on C# projects. – Sebastian Budka Jun 29 '16 at 15:40
  • Well, I did say in my comment on your answer "I believe c++ is the same as c#"...turns out I was wrong – Assimilater Jun 29 '16 at 15:45