I was receiving this error after installing phantomjs on my Linux Vagrant Instance. The fix was very simple. Just entered the following line and it worked.
sudo apt-get install libfontconfig
So basically just had to make sure that libfontconfig was installed. Found the fix here.
I was having an issue wherein when I ran chef-apply hello.rb as instructed on the chef tutorial I received a long error message:
/opt/chef/embedded/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs’: Could not find chef (>= 0) amongst [activesupport-4.1.1, activesupport-3.2.18…and then a ton more
The way I fixed this issue was simply to type:
Not too sure as to why this works, but it fixed my problem, and hopefully will work for you.