Use vs2017 to open the vs2015 project (it prompts that the v140 generation tool cannot be found (platform toolset = "v140"))

Open the project created in 2015 with 2017, the compilation prompts that the v140 generation tool cannot be found (platform tool set = "v140"),

Solution: Select the project properties, select the redirect solution target, select the current VS window sdk version,
redirect, and then recompile.


Select the installed toolset

and redirect it
to generate it