Microsoft ASP.NET Web API 2 on .net 4.0

Question

Is it possible to use ASP.NET Web API 2 with .net 4.0? I tried to upgrade from an older version but I get:

Could not install package 'Microsoft.AspNet.WebApi.Client 5.0.0'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.0'

score 32 · Accepted Answer · answered Feb 05 '14 at 09:13

32

To answer my own question:

No, it is NOT possible to use Web API 2 with .net 4.0:

enter image description here

This is taken from a slide by Damian Edwards. You can find additinal info here.

answered Feb 05 '14 at 09:13

Dunken

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If you check @MikeL below, that's a valid workaround. – Ryan O'Neill May 22 '14 at 15:27
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This only works on the client side. On the server you need .net 4.5! – Dunken May 23 '14 at 08:51

score 22 · Answer 2 · answered Dec 20 '13 at 19:39

FWIW, I had a .NET 4.0 requirement on the client (die WinXP!), but I could do .NET 4.5 on the server. So, I have WebApi2 running server side, but the WebApi1 client package running on the client, handling serialization, etc.

Using the Package Manager Console in Visual Studio and choosing my client project in the default project dropdown, I was able to:

Install-Package Microsoft.AspNet.WebApi.Client -Version 4.0.30506.0

Everything thereafter worked well.

nice! web API 1 is fine for alot of client calls – Anonymous Type Mar 18 '15 at 00:12 — Anonymous Type, Mar 18 '15 at 00:12

Microsoft ASP.NET Web API 2 on .net 4.0

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