Estou usando o fedora 30 e tentei fazer a instalação com os comandos do fedora e apareceu o erro abaixo ...alguem pode me ajudar?
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory: /usr/share/gems/gems/nio4r-2.4.0/ext/nio4r/usr/bin/ruby -I /usr/share/rubygems -r ./siteconf20190711-8371-1amu6wm.rb extconf.rb checking for unistd.h... * extconf.rb failed * Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib64
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/$(RUBY_BASE_NAME)
/usr/share/ruby/mkmf.rb:467:in try_do': The compiler failed to generate an
executable file. (RuntimeError)
You have to install development tools first.
from /usr/share/ruby/mkmf.rb:601:intry_cpp'
from /usr/share/ruby/mkmf.rb:1109:in block in have_header'
from /usr/share/ruby/mkmf.rb:959:inblock in checking_for'
from /usr/share/ruby/mkmf.rb:361:in block (2 levels) in postpone'
from /usr/share/ruby/mkmf.rb:331:inopen'
from /usr/share/ruby/mkmf.rb:361:in block in postpone'
from /usr/share/ruby/mkmf.rb:331:inopen'
from /usr/share/ruby/mkmf.rb:357:in postpone'
from /usr/share/ruby/mkmf.rb:958:inchecking_for'
from /usr/share/ruby/mkmf.rb:1108:in have_header'
from extconf.rb:14:in
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/usr/lib64/gems/ruby/nio4r-2.4.0/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /usr/share/gems/gems/nio4r-2.4.0 for inspection. Results logged to /usr/lib64/gems/ruby/nio4r-2.4.0/gem_make.out
An error occurred while installing nio4r (2.4.0), and Bundler cannot
continue.
Make sure that gem install nio4r -v '2.4.0' --source 'https://rubygems.org/'
succeeds before bundling.
In Gemfile: rails was resolved to 5.2.3, which depends on actioncable was resolved to 5.2.3, which depends on nio4r run bundle exec spring binstub --all Could not find gem 'chromedriver-helper' in any of the gem sources listed in your Gemfile.
