This is not a bug or feature request but additional instructions that i think should be added as i felt the given ones were incomplete
1.The first issue that i encountered when i gave the command npm install was that there is no python2 installed try setting PYTHON environment variable i dont know what was the real reason for it but i ran this command npm --add-python-to-path='true' --debug install --global windows-build-tools
after that when i did npm install with this command npm install package.json --msvs_version=2017
2.As i have latest @angular/cli package which is 7.3.4 which is installed globally and this project is made on old cli so i recommend to add the @angular/cli package in package.json file in dependencies and with version set to 2,3.1 and in scripts add "ng":"ng" and then run npm run script start