I am currently facing this issue on Chaskiq bot which is based on ruby and rails. While installing dependencies with bundler, I got stuck at unf_ext 0.0.8.

First I encounter the ruby version error that 2.7.6 is not supported, only 2.7.5 is then Installed the 2.7.5 ran this cmd

bundle install

enter image description here

CodePudding user response：

Edit Gemfile

sudo nano Gemfile

replace the following line:

gem "sassc"

with:

gem "sassc", "~> 2.1.0"