ROR安装（Heroku错误推送失败）

Question

-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.3.2
       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin --deployment
       You are trying to install in deployment mode after changing
       your Gemfile. Run `bundle install` elsewhere and add the
       updated Gemfile.lock to version control.
       You have added to the Gemfile:
       * sqlite3 (= 1.3.5)
       * sass-rails (= 3.2.5)
       * coffee-rails (= 3.2.2)
       * uglifier (= 1.2.3)
       * jquery-rails (= 2.0.2)
       * pg (= 0.12.2)
       You have deleted from the Gemfile:
       * coffee-rails (~> 3.2.1)
       * jquery-rails
       * sass-rails (~> 3.2.3)
       * sqlite3
       * uglifier (>= 1.0.3)
 !
 !     Failed to install gems via Bundler.
 !
 !     Heroku push rejected, failed to compile Ruby/rails app

Answer 1

正如日志所说：

  You are trying to install in deployment mode after changing
       your Gemfile. Run `bundle install` elsewhere and add the
       updated Gemfile.lock to version control.

我认为在推送到heroku之前你还没有提交Gemfile.lock文件。运行bundle install然后提交Gemfile和Gemfile.lock。之后将代码推送到heroku。