title: How to install (v142) Build tools in Visual studio
body: <p>As I am trying to build something in visual studio then visual studio show me some warning and then If i ignored it and build then error occurs.</p>
  
  <pre><code>    error MSB8020: The build tools for v142 (Platform Toolset = 'v142') 
      cannot be found. To build using the v142 build tools, please install 
      v142 build tools.
  </code></pre>
  
  <p>It will also show me an Alternate option I also tried it but not works.</p>
  
  <pre><code>    Alternatively, you may upgrade to the current 
      Visual Studio tools by selecting the Project menu or right-click the 
      solution, and then selecting "Retarget solution".
  </code></pre>