Impossible to install GoogleAnalyticsTracker.Core Nuget package

I want to install the package GoogleAnalyticsTracker.Core from Nuget in my C++ project, but when I try to install, I get this error:

Could not install package 'GoogleAnalyticsTracker.Core 4.0.0'. You are trying to install this package into a project that targets 'native,Version=v0.0', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

I don't know why it cannot install it, my .NET Framework is v4.5.

This is the nuspec file:

<?xml version="1.0"?>
<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
  <metadata>
    <id>GoogleAnalyticsTracker.Core</id>
    <version>4.0.0</version>
    <title>GoogleAnalyticsTracker.Core</title>
    <authors>GoogleAnalyticsTracker</authors>
    <owners>GoogleAnalyticsTracker</owners>
    <requireLicenseAcceptance>false</requireLicenseAcceptance>
    <description>GoogleAnalyticsTracker - A C# library for tracking Google Analytics.</description>
    <copyright>Copyright © GoogleAnalyticsTracker 2012 - 2015</copyright>
  </metadata>
</package>