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impossible to start my project with RoR v 4.2.10

kara asked in Rails

help me to statr my first projet with RoR.
on installation rails v4.2.10 ( impossible for my to install the last version => v.5.x)
before create my project with command :
rails new inspiron --database=mysql
create my project : inspiron

i'm error when to start server rails with

rails server

see error

Could not find gem 'mysql2 (< 0.5, >= 0.3.13)' in any of the gem sources listed in your Gemfile.
Run bundle install to install missing gems.

i check the file gemfile, not problem, mysql2 is pesent
i run

bundle install

nokogiri become problem... please help me

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