Installing TFS 2010 on 2008R2

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System Checks: The .NET 3.5 Framework is not installed.  You must install the .NET 3.5 Framework Feature before continuing.

 

I love how TFS 2010 splits the installation from 1 giant step into two relatively simple ones.

  1. Install the components
  2. Configure the TFS server

Installation

Here's the relatively painless installation.

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Configuration

Here's the configuration, which should have been painless, except its not.  TFS needs .NET 3.5 Framework, which hasn't been installed on a clean, new 2008 R2 machine.

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Problem

TFS needs .NET 3.5, but doesn't install it.  It installs .NET 4, then blocks you during configuration wizard.

MS explains it here: http://connect.microsoft.com/VisualStudio/feedback/details/585754/after-install-tfs-2010-requires-net-fw-3-5-fw-4-0-already-installed but I think it's just stupid :-(

 

Correct Fix

First Enable .NET Framework 3.5.1 from Add Features

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Reinstall/Repair TFS.  So .NET 4 is installed AFTER 3.5

Then finally, run TFS Configuration again.

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