解决Starting to watch source with Jekyll and Compass. Starting Rack on port 4000

问题

Starting to watch source with Jekyll and Compass. Starting Rack on port 4000
rake aborted!
Errno::ENOENT: No such file or directory - jekyll
/Users/apple/Desktop/Project/Blog/jackyshan.github.io/Rakefile:84:in `spawn'
/Users/apple/Desktop/Project/Blog/jackyshan.github.io/Rakefile:84:in `block in <top (required)>'
Tasks: TOP => preview
(See full trace by running task with --trace)

解决

vi Gemfile 更改source

 source "https://rubygems.org"

group :development do
  gem 'rake', '~> 10.0'
  gem 'jekyll', '~> 2.0'
  gem 'octopress-hooks', '~> 2.2'
  gem 'octopress-date-format', '~> 2.0'
  gem 'jekyll-sitemap'
  gem 'rdiscount', '~> 2.0'
  gem 'RedCloth', '~> 4.2.9'
  gem 'haml', '~> 4.0'
  gem 'compass', '~> 1.0.1'
  gem 'sass-globbing', '~> 1.0.0'
  gem 'rubypants', '~> 0.2.0'
  gem 'rb-fsevent', '~> 0.9'
  gem 'stringex', '~> 1.4.0'
end

gem 'sinatra', '~> 1.4.2'

执行下面代码

sudo gem install bundler

rbenv rehash

bundle install

出现ssl问题

Could not load OpenSSL.
You must recompile Ruby with OpenSSL support or change the sources in your Gemfile from 'https' to 'http'. Instructions
for compiling with OpenSSL using RVM are available at rvm.io/packages/openssl.

执行下面代码