title: Visual Studio 2017 and Windows App Certification Kit: test errors
body: <p>I'm trying to publish my app on the <code>Microsoft Store</code>. When I run the <code>Windows App Certification Kit</code> I receive for each action an error related with <code>Microsoft.Windows.SoftwareLogo.TestBase</code>.</p>
  
  <p>I'm using <code>Visual Studio 2017</code> Version 15.9.3</p>
  
  <p><a href="https://i.stack.imgur.com/uvOlh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uvOlh.png" alt="Visual Studio About"></a></p>
  
  <blockquote>
    <p>Bytecode generation
    Error Found: The bytecode generation test detected the following errors:
    System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Windows.SoftwareLogo.Tests.Utility.IsPackageWWA(AppXPackage package) at Microsoft.Windows.SoftwareLogo.Tests.BytecodeGenerationCheck.BytecodeGenerationCheck.ExecuteSharedValidation(String manifestFilePath, String packageFullName) at Microsoft.Windows.SoftwareLogo.TestBase.TestBase.ExecuteTest()
    Impact if not fixed: As a performance optimization to accelerate JavaScript execution time, JavaScript files ending in the ".js" extension generate bytecode when the app is deployed. This optimization significantly improves start-up and ongoing execution times for JavaScript. 
    How to fix: You may need consider one or more of these steps to fix the issue:
    - Avoid deploying the app by pressing F5 in Visual Studio, create an app package instead
    - Ensure that event logging is enabled
    - All JavaScript files are syntactically valid; otherwise exclude the respective files from the package
    - Please note that you should uninstall all previous versions of the app before deploying
    Otherwise exclude the respective files from the package.</p>
  </blockquote>
  
  <p><a href="https://i.stack.imgur.com/gnG56.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gnG56.png" alt="Errors"></a></p>
  
  <p>I verified in my Visual Studio Installer and the Windows SDK in installed. </p>
  
  <p><a href="https://i.stack.imgur.com/lXU9c.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lXU9c.png" alt="Visual Studio Installer"></a></p>
  
  <p>Also, I checked the <code>targeting</code> version of the project:</p>
  
  <ul>
  <li>Target version: 1809 (10.0; Build 17763)</li>
  <li>Min version: November Update (10.0; Build 10586)</li>
  </ul>
  
  <p><a href="https://i.stack.imgur.com/RIETi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RIETi.png" alt="Application Targeting"></a></p>
  
  <p>There is not SDK for this build...</p>