ASP.net 4.6.2 application failing to build

Our Hudson build server was throwing the following warning and then failing to build our code:

warning MSB3644: The reference assemblies for framework “.NETFramework,Version=v4.5.2” were not found. To resolve this, install the SDK or Targeting Pack for this framework version or retarget your application to a version of the framework for which you have the SDK or Targeting Pack installed.

Fixing this problem was very simple and just required us installing the following:

Microsoft .NET Framework 4.5.2 Developer Pack

Once installed everything worked like magic.

We also could have changed the target framework to the native framework but who has time for that…:
Target framework is ‘.NETFramework,Version=v4.5.2’.
Native framework is ‘.NETFramework,Version=v4.6.2’.