title: block in materialize Could not find multi_json-1.8.0 in any of the sources rails
body: <p>Here is my deploy.rb</p>
  
  <pre><code>require "bundler/capistrano"
  
  set :rvm_ruby_string, "ruby-2.0.0-p247"
  set :rvm_type, :user
  
  set :application, "myapp"
  set :repository,  "git@bitbucket.org:user/myapp.git"
  set :user, "my-server-username-ssh"
  set :branch, "master"
  
  set :deploy_to, "/var/rails_apps/myapp"  # I have current, release and shared directory here
  set :deploy_via, :copy
  set :use_sudo, true
  set :rvm_install_with_sudo, true
  
  default_run_options[:pty] = true
  
  set :port, 1234
  
  set :scm, :git
  
  role :web, "myapp.com"
  role :app, "myapp.com"
  role :db,  "myapp.com", :primary =&gt; true
  role :db,  "myapp.com"
  
  after "deploy:update_code","deploy:config_symlink"
  
  set :rvm_type, :system
  
  # If you are using Passenger mod_rails uncomment this:
  namespace :deploy do
    task :start do ; end
    task :stop do ; end
    task :restart, :roles =&gt; :app, :except =&gt; { :no_release =&gt; true } do
      run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
    end
  
    task :config_symlink do
      #run "cp #{release_path}/config/database.yml.example #{release_path}/config/database.yml"
    end
  
    desc 'Re-establish database.yml'
    task :set_database_symlink do
      run "rm -fr #{current_path}/config/database.yml &amp;&amp; cd #{current_path}/config &amp;&amp;
          ln -nfs #{shared_path}/database.yml database.yml" 
    end
  end
  
  before 'deploy', 'rvm:install_ruby'
  before 'deploy', 'rvm:create_gemset'
  
  require "rvm/capistrano"
  </code></pre>
  
  <p>if i run cap <code>deploy:migrate</code></p>
  
  <p>I am getting error no database found error.</p>
  
  <p>And when i manually run rake db:create in my server I am facing this error</p>
  
  <pre><code>/usr/local/rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/spec_set.rb:92:in `block in materialize': Could not find multi_json-1.8.0 in any of the sources (Bundler::GemNotFound)
  </code></pre>
  
  <p>How can i create and migrate my database.</p>
  
  <p><strong>Edit-1</strong></p>
  
  <p>Even i have updated my certificate using</p>
  
  <p><code>rvm osx-ssl-certs update all</code></p>
  
  <p>In my gem list i can fine</p>
  
  <p><code>multi_json (1.8.2)</code></p>