I'm getting this error in console. I've googled it, but can't find any examples, and don't know how to fix it, or even start in diagnosing it. Can anyone point me in the right direction?
env.js:14 Uncaught TypeError: readFileSync is not a function
at Object../node_modules/@rails/webpacker/package/env.js (env.js:14:1)
Very old comment, but I had the same issue and it was the difference between Bootstrap 3 & 4. BS3 uses hidden.