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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 ?????
Updated 12-May-14 19:45pm

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.

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