how to convert .net framework 4.5 to 4.0 in visual studio 2010

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Hi,
I am using dot net framework (4.0) visual studio 2010 . and one of my friend gave me the project which he developed in .net framework 4.5 ( vs 2012 ) . And i am unable to open the project
. and the error i am getting is Unable to read the project file 'EssentialTools.Tests.csproj'.
one or more projects in solution is not correctly loaded ? How can i convert .net framework 4.5 to 4.0. And i have tried to change the target version in web.config to 4.0 but still it throws error ?????

Posted 12-May-14 18:39pm

MurugappanCTS

Updated 12-May-14 18:45pm

v3

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sankarsan parida · Answer 1 · 2014-05-12T18:46:00

Solution 1

see the following link
http://www.howtosolutions.net/2013/02/solving-project-file-error-could-not-find-part-of-the-path-with-visual-studio/#.U3GjBYGSxKc[^]
http://stackoverflow.com/questions/13294932/visual-studio-2012-1-of-4-projects-not-loading[^]

Posted 12-May-14 18:46pm

sankarsan parida

v2

*dan!sh* · Answer 2 · 2014-05-12T19:14:00

VS 2012 solutions cannot be directly opened in VS 2010. One way would be create new project in VS2010 and copy code files to it. Or else, you will need to make following changes to VS 2012 solution:

1. Open Sln file and change Format Version to 11.00.
2. In app.config file, change framework version to 4.0.
3. Change target framework in project file to 4.0.