What is the location of file:
VCVARSALL.BAT
for Visual studio 2017?
VS2017 has reworked its directory structure and filenames. You should look for the file 'vcvars.bat', which can be located in "..\Program Files (x86)\Microsoft Visual Studio\2017\EDITION\Common7\Tools\vsdevcmd\ext\vcvars.bat" (replace EDITION with the version of Visual Studio you use).
For simplicity, you can use "%VSAPPIDDIR%" in your call to point to the IDE folder where devenv.exe is located, and go back one folder to define your path to the batch file. For example:
call "%VSAPPIDDIR%..\Tools\vsdevcmd\ext\vcvars.bat"