Where is Microsoft.Practices.Unity package?

An hour ago I updated my nuget packages for the solution I'm working on and I get the error message, thrown by Unity, that

The type 'IUnityContainer' is defined in an assembly that is not referenced. You must add a reference to assembly 'Microsoft.Practices.Unity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=6d32ff45e0ccc69f'.

Since then I have been googling to get some usable information about that where this package is. The articles, question around it are old, deals with 2.x version.

There is no such package in Nuget.

I have the packages listed below from Unity stack installed:

  <package id="Unity" version="4.0.2" targetFramework="net452" />
  <package id="Unity.ServiceLocator" version="2.0.0" targetFramework="net452" />
  <package id="Unity.WebAPI" version="5.2.3" targetFramework="net452" />

Any help is appreciated!

Solution

After adding the nuget with

Install-Package Unity

it is located in

packages\Unity.4.0.1\lib\net45\Microsoft.Practices.Unity.dll

You probably just need to add a reference to this assembly.