title: How to fix this error in EF7?
body: <p>I am trying to get started with <code>EF7</code>.</p>
  
  <p><a href="https://ef.readthedocs.org/en/latest/platforms/full-dotnet/new-db.html" rel="nofollow noreferrer">This is the example</a> I am trying to run right now.</p>
  
  <p>I am getting the following error:</p>
  
  <p><a href="https://i.stack.imgur.com/kMHjB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kMHjB.png" alt="enter image description here"></a></p>
  
  <p>This is my <code>packages.config</code>:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;packages&gt;
    &lt;package id="EntityFramework.Commands" version="7.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="EntityFramework.Core" version="7.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="EntityFramework.Relational" version="7.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="EntityFramework.Relational.Design" version="7.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="EntityFramework.SqlServer" version="7.0.0-beta8" targetFramework="net452" /&gt;
    &lt;package id="EntityFramework.SqlServer.Design" version="7.0.0-beta8" targetFramework="net452" /&gt;
    &lt;package id="Ix-Async" version="1.2.5" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Caching.Abstractions" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Caching.Memory" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Configuration" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Configuration.Abstractions" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Configuration.Binder" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.DependencyInjection" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Logging" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Logging.Abstractions" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.OptionsModel" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Microsoft.Extensions.Primitives" version="1.0.0-rc1-final" targetFramework="net452" /&gt;
    &lt;package id="Remotion.Linq" version="2.0.1" targetFramework="net452" /&gt;
    &lt;package id="System.Collections.Immutable" version="1.1.36" targetFramework="net452" /&gt;
    &lt;package id="System.Diagnostics.DiagnosticSource" version="4.0.0-beta-23516" targetFramework="net452" /&gt;
    &lt;package id="System.Diagnostics.Tracing" version="4.0.0" targetFramework="net452" /&gt;
    &lt;package id="System.Runtime" version="4.0.0" targetFramework="net452" /&gt;
    &lt;package id="System.Threading" version="4.0.0" targetFramework="net452" /&gt;
  &lt;/packages&gt;
  </code></pre>
  
  <p>As you can see <code>EF.Core</code> is already declared here.</p>
  
  <p>I am also having an Warning     </p>
  
  <pre><code>The 'packages' element is not declared.
  </code></pre>
  
  <p>So what is the problem?</p>
  
  <p>Note: I am using <code>Windows 10 Pro</code> and <code>VS Enterprise 2015</code>.</p>