Question

I’m trying to upload my rail app to Heroku. I’m using Ruby 1.9.3.
The app can be deployed okay on my local machine.

 An error occurred while installing linecache19 (0.5.12), and Bundler cannot continue.
   Make sure that `gem install linecache19 -v '0.5.12'` succeeds before bundling.
 !
 !     Failed to install gems via Bundler.
 !
 !     Heroku push rejected, failed to compile Ruby/rails app

I’ve tried entering this line to the Gemfile

gem 'linecache19', :git => 'git://github.com/mark-moseley/linecache'

But it doesn’t seem to solve the problem.

Can someone please advise ? Thank you in advance for the help.
p.s.: Really sorry for the newbie question, I’m pretty new at Ruby on Rails development.

Below is my complete Gemfile

---

source 'http://rubygems.org'

gem 'rails', '3.1.0'

# Bundle edge Rails instead:
# gem 'rails',     :git => 'git://github.com/rails/rails.git'

# for Heroku deployment - as described in Ap. A of ELLS book
group :development, :test do
 gem 'sqlite3'
 gem 'ruby-debug19', :require => 'ruby-debug'
end
group :production do
 gem 'pg'
end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
 gem 'therubyracer'              
 gem 'sass-rails', "  ~> 3.1.0"
 gem 'coffee-rails', "~> 3.1.0"
 gem 'uglifier'
end

gem 'jquery-rails'

# Use unicorn as the web server
# gem 'unicorn'

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger
gem 'haml'

gem 'linecache19', :git => 'git://github.com/mark-moseley/linecache'

Answer 1

linecache19 is a gem used for debugging purposes. There is no need for it in production, so you should be excluding it from the gems used in production.

Add it to the :development, :test group you already have toward the top of your file, bundle, and re-deploy.

group :development, :test do
  gem 'sqlite3'
  gem 'ruby-debug19', :require => 'ruby-debug'
  gem 'linecache19', :git => 'git://github.com/mark-moseley/linecache'
end