I downloaded the bootstrap 4 alpha 5 source files on my windows 10 machine. I unzipped the folder to my downloads folder and before making any changes I wanted to see how it builds. So I open a command prompt with admin privileges and ran "npm install". It ran and said some things were deprecated and and I got this at the bottom:
npm WARN optional Skipping failed optional dependency /chokidar/fsevents: npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.0.15
It said optional so I didn't think much of it so then I ran "grunt" and got the following error:
Running "scsslint:core" (scsslint) task Warning: bundleExec options set but no Bundler executable found in your PATH. More info: https://github.com/ahmednuaman/grunt-scss-lint Use --force to continue.
Aborted due to warnings.
In order to fix it I tried change all modules to in the packages folder to * for version just to get latest but it still didn't work.
I want to emphasize I didn't make any changes to the bootstrap 4 files, I am just trying to compile a fresh download.