MSB8020: The build tools for {0} (Platform Toolset = '{1}') cannot be found. To build using the {1} build tools, please install ...

MSB8020: The build tools for {0} (Platform Toolset = '{1}') cannot be found. To build using the {1} build tools, please install {0} build tools.  Alternatively, you may upgrade to the current Visual Studio tools by selecting the Project menu or right-click the solution, and then selecting "Upgrade Solution...".