我的 Rails 应用程序部署到 heroku 有问题

Question

我按照 heroku 指南进行部署。

但是当我使用 commend 'heroku rake db:migrate' 时，会出现以下错误：

Running rake db:migrate attached to terminal... up, run.1
(in /app)
rake aborted!
no such file to load -- test/unit/error
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `block in require'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/deprecation.rb:224:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `block in require'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
/app/.gems/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
/app/.gems/gems/activesupport-2.2.2/lib/active_support.rb:37:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/app/.gems/gems/rails-2.2.2/lib/tasks/misc.rake:11:in `<top (required)>'
/app/.gems/gems/rails-2.2.2/lib/tasks/rails.rb:4:in `load'
/app/.gems/gems/rails-2.2.2/lib/tasks/rails.rb:4:in `block in <top (required)>'
/app/.gems/gems/rails-2.2.2/lib/tasks/rails.rb:4:in `each'
/app/.gems/gems/rails-2.2.2/lib/tasks/rails.rb:4:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/app/Rakefile:10:in `<top (required)>'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in `load'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:1991:in `run'
/usr/ruby1.9.2/bin/rake:31:in `<main>'
jason@jason-VirtualBox:~/work/depot$ rake db:migrate
(in /home/jason/work/depot)

我在 heroku 访问我的应用程序，它显示错误：

应用程序错误
应用程序发生错误，无法提供您的页面。 请稍后重试。

如果您是应用程序所有者，请检查您的日志以了解详细信息。

Answer 1

尝试在生产环境的 gem 文件中添加 pg gem 并执行以下命令

 $ bundle install --without production

由于 Heroku 使用 Postgresql 数据库，我们必须使用这种方式。 希望能帮到你。