title: Your project does not reference ".NETFramework,Version=v4.5" framework. Add a reference to ".NETFramework,Version=v4.5"
body: <p><strong>Visual Studio Version</strong>:
  2019
  <strong>Summary</strong>:
  I have two framework projects in  same folder, 4.7 framework project has  local Nuget Package reference and   4.5 framework project has  local Assembly reference. The reported issue occurs when run 4.5 project after run the  4.7 projects</p>
  <p>Issue:
  Severity    Code    Description Project File    Line    Suppression State
  Error       Your project does not reference &quot;.NETFramework,Version=v4.5&quot; framework. Add a reference to &quot;.NETFramework,Version=v4.5&quot; in the &quot;TargetFrameworks&quot; property of your project file and then re-run NuGet restore.</p>
  <p><strong>4.7 Project</strong></p>
  <pre><code>  &lt;ItemGroup&gt;
     &lt;PackageReference Include=&quot;Microsoft.Xaml.Behaviors.Wpf&quot; Version=&quot;1.1.19&quot; /&gt;
  &lt;/ItemGroup&gt;
  </code></pre>
  <p><strong>4.5 Project</strong></p>
  <pre><code>&lt;Reference Include=&quot;Microsoft.Xaml.Behaviors.Wpf&quot; xmlns=&quot;&quot;&gt;
    &lt;HintPath&gt;..\resources\Assembilies\Microsoft.Xaml.Behaviors.dll&lt;/HintPath&gt;
  &lt;/Reference&gt;
  </code></pre>
  <p><strong>Steps to Reproduce</strong>:</p>
  <ol>
  <li><p>Run 4.7 project with nuget reference</p>
  </li>
  <li><p>run 4.5 project  with assembly reference</p>
  </li>
  <li><p>will reproduce the reported issue</p>
  </li>
  </ol>
  <p>How to solve this issue</p>