Rails 3/ Git/ Bundler Fatal Could Not Parse Object

Rails Bundle Install failing on bootstrap-sass

There is no branch 3 in https://github.com/thomas-mcdonald/bootstrap-sass/ anymore. That's why Git is complaining. So you need to change it from:

gem 'bootstrap-sass', :github => 'git://github.com/thomas-mcdonald/bootstrap-sass.git', :branch => '3'

to:

gem 'bootstrap-sass', :git => 'git://github.com/thomas-mcdonald/bootstrap-sass.git'

or use a shorthand syntax:

gem 'bootstrap-sass', :github => 'thomas-mcdonald/bootstrap-sass'

uploading to heroku causes an error

The problem is with:

gem 'bootstrap-sass', github: 'thomas-mcdonald/bootstrap-sass', branch: '3'

If you check the link below:

https://github.com/thomas-mcdonald/bootstrap-sass/branches

The branch seems to be deleted, maybe it was merged into the master branch, based on feedback from the OP, anyone using it subsequently should add the below to their Gemfile:

gem 'sass-rails', '>= 3.2' # sass-rails needs to be higher than 3.2
gem 'bootstrap-sass', '~> 3.0.3.0'

Bundle install fails with: Bundler could not find compatible versions for gem railties:

Try removing Gemfile.lock and doing bundle again.

Try adding to Gemfile:

gem 'coffee-rails', git: 'git://github.com/rails/coffee-rails.git'

instead of:

gem 'coffe-rails'

Edit:

Ok, I have copied it locally and tried to resolve, my changes:

gem 'coffee-rails', git: 'git://github.com/rails/coffee-rails.git'
gem 'activeadmin',         github: 'gregbell/active_admin', branch: 'rails4'
gem 'rails', git: 'https://github.com/rails/rails.git', branch: '4-0-stable'
gem 'devise'
gem 'ransack'
gem 'sass-rails', git: 'https://github.com/rails/sass-rails.git'

and now it checks out, at least here.

Capistrano error on bundling compass from git

It's because there is no rails3.1 branch on github. Try gem 'compass', '~> 0.12.alpha'

Heroku deployment with active_admin

Looks like the rails4 branch for active_admin was removed!

You can update your gemfile and specify a tag or commit reference. As of today v0.6.1 is the most up to date version, so you could do:

gem "activeadmin", github: "gregbell/active_admin", tag: "v0.6.1"

..and that would solve your problem. Alternatively, as you pointed out in your comment, choosing another specific revision would also get rid of the error.

gem "activeadmin", github: "gregbell/active_admin", ref: "82ff48d51525bdf55c96e50d8650d45f2a6716ed"

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