如何在Visual Studio 2010的目标框架中添加点网版本4.0？

Question

In my visual studio 2010, target framework only include (2.0, 3.0 and 3.5).
Does not include for 4.0.
So, may I know how can I add dot net 4.0 to show in target framework.
I already install dot net version 4 in my pc. But doesn't show in target framework.
Please advice me.

Answer 1

Visual studio checks this folder for .net assembly references

C:\Program Files\Reference Assemblies\Microsoft\Framework\xxx

If that folder is missing 4.0 for you, installing a new version of visual studio may create that folder for you. You could also try copying that folder from a different machine.

If that doesn't work, try the answers suggested here:

dotnet Framework 4 missing from visual studio 2010

EDIT: Source for the first suggestion - http://www.anujvarma.com/visual-studio-does-not-display-4-0-or-4-5-framework-option-for-target-framework/