我在将我的 Rails 项目推回 Heroku 时遇到问题。几天前我能够做到这一点。我对文件进行了一些更改，并尝试使用git push heroku. 它启动该过程然后给我这些错误。
> Counting objects: 56, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (35/35), done.
Writing objects: 100% (37/37), 3.96 KiB, done.
Total 37 (delta 18), reused 0 (delta 0)
`-----> Heroku receiving push
-----> Ruby/Rails app detected
-----> Detected Rails is not set to serve static_assets
Installing rails3_serve_static_assets... done
-----> Configure Rails 3 to disable x-sendfile
Installing rails3_disable_x_sendfile... done
-----> Configure Rails to log to stdout
Installing rails_log_stdout... done
-----> Gemfile detected, running Bundler version 1.0.7
Unresolved dependencies detected; Installing...
Using --without development:test
Fetching source index for https://rubygems.org/
Installing rake (0.9.2.2)
Installing ZenTest (4.7.0) /usr/ruby1.9.2/lib/ruby/1.9.1/rubygems/installer.rb:170:in `install': ZenTest requires RubyG
ems version ~> 1.8. Try 'gem update --system' to update RubyGems itself. (Gem::InstallError)
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/source.rb:95:in `install'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/installer.rb:55:in `block in run'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `block in each'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/installer.rb:44:in `run'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/installer.rb:8:in `install'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/cli.rb:225:in `install'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `run'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/vendor/thor.rb:246:in `dispatch'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/vendor/thor/base.rb:389:in `start'
from /usr/ruby1.9.2/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/bin/bundle:13:in `<top (required)>'
from /usr/ruby1.9.2/bin/bundle:19:in `load'
from /usr/ruby1.9.2/bin/bundle:19:in `<main>'
FAILED: http://devcenter.heroku.com/articles/bundler
! Heroku push rejected, failed to install gems via Bundler
`To git@heroku.com:mbartonsampleapp.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git@heroku.com:mbartonsampleapp.git'
我的宝石文件有
source 'https://rubygems.org'
gem 'rails', '3.2.3'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'heroku'
group :development do
gem "ZenTest", "~> 4.7.0"
gem 'sqlite3'
gem 'autotest', '4.4.6'
gem 'rspec-rails', '2.9.0'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
group :production do
# gems specifically for Heroku go here
gem 'pg'
end
group :test do
gem 'autotest', '4.4.6'
gem 'rspec-rails', '2.9.0'
gem 'webrat', '0.7.3'
gem "spork", '0.9.0'
end
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
gem 'therubyracer', :platform => :ruby
gem 'execjs'
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'ruby-debug19', :require => 'ruby-debug'