title: Qt VS Tools does not work in Visual Studio 2019
body: <p>I have installed Qt from this file, qt-opensource-windows-x86-5.13.1.exe and install Qt VS Addin from this file, qt-vsaddin-msvc2019-2.4.1.vsix</p>
  
  <p>Unfortunately, Qt VS Tools doesnt work in Visual Studio 2019. I get this
  <a href="https://i.stack.imgur.com/cwgBo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cwgBo.png" alt="enter image description here"></a></p>
  
  <p>Here are the full ActivityLog.xml if you are interested.
  <a href="https://pastebin.com/AXfCEXuF" rel="nofollow noreferrer">https://pastebin.com/AXfCEXuF</a> Below are error related to Qt in ActivityLog.xml</p>
  
  <pre><code>Still unable to load MEF component DLL: Could not load file or assembly 'Microsoft.VisualStudio.Threading, Version=16.3.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) C:\USERS\DNDT\APPDATA\LOCAL\MICROSOFT\VISUALSTUDIO\16.0_AE768EF4\EXTENSIONS\U15MJQMI.ZYG\QtVsTools.dll    
  SetSite failed for package [Vsix]Source: 'QtVsTools' Description: Could not load file or assembly 'Microsoft.VisualStudio.Threading, Version=16.3.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.VisualStudio.Threading, Version=16.3.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. File name: 'Microsoft.VisualStudio.Threading, Version=16.3.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'at QtVsTools.Vsix.InitializeAsync(CancellationToken cancellationToken, IProgress`1 progress)at Microsoft.VisualStudio.Shell.AsyncPackage.&lt;&gt;c__DisplayClass19_0.&lt;&lt;Microsoft-VisualStudio-Shell-Interop-IAsyncLoadablePackageInitialize-Initialize&gt;b__1&gt;d.MoveNext()
  --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)at Microsoft.VisualStudio.Threading.JoinableTask.&lt;JoinAsync&gt;d__68.MoveNext()
  --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Services.VsTask.RethrowException(AggregateException e)at Microsoft.VisualStudio.Services.VsTask.InternalGetResult(Boolean ignoreUIThreadCheck)at Microsoft.VisualStudio.Services.VsTask.GetResult() WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
  </code></pre>