Installing unf_ext 0.0.7.2 not working

Question

So when I try running bundle install --without production it tells me that I am getting an error and that I need to Make sure that gem install unf_ext -v

Answer 1

After updating to Mojave MacOS version, the ruby 'lost' the reference.

To solve

$ rvm list

In my case, the version listed was:

ruby-2.5.1 [ x86_64 ]

$ rvm use ruby-2.5.1 to change to 'current' version used

$ rvm list again to see the current version

=> ruby-2.5.1 [ x86_64 ]

After that everything are okay running bundle install or bundle update or gem install or gem update