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ruby-on-railslinuxprawn

prawn requires Ruby version >= 2.0.0 but I already have

I want to install prawn for my Ruby on Rails. Here are information.

I'm using linux mint.

command 1: rvm list

rvm rubies

=* ruby-2.2.3 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

command 2: ruby --version

ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]

command 3: sudo gem install prawn

ERROR:  Error installing prawn:
    prawn requires Ruby version >= 2.0.0.

Why does prawn sees me using ruby version less than 2.0.0? How can I fix this?

Solution

  • It looks like this might be because you're using sudo to install prawn which RVM advises against. As a result the prawn gem gets installed as root outside of RVM's control. Try again without sudo?