Visual Studio - error MSB8020
오류 1 error MSB8020: The build tools for v140 (Platform Toolset = 'v140') cannot be found. To build using the v140 build tools, please install v140 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...". 프로젝트 속성 -> 플렛폼 도구 집합 -> 설치된 툴로 변경