我正在使用Cloud9 IDE，运行 Ruby -v 2.3.4p301 ， Rails -v 4.2.5 和 Heroku -v heroku/7.4.1 linux-x64 node-v10.4.1

我从我的数据库名称中删除 sqlite3 并获取下面指定的gem文件：

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.5'
# Use sqlite3 as the database for Active Record

# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  gem 'sqlite3'
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'
end

group :development do
  # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console', '~> 2.0'

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
end

group :production do
  gem 'pg' #postgress
  gem 'rails_12factor'
end

我跑 bundle install git status git add -A git commit -m 'initial commit' git push git push heroku master

并在此处获取错误：

远程：！预编译资产失败 . 远程：！远程：！推送拒绝，无法编译Ruby应用程序 . 遥控器：遥控器：！推送失败的远程：验证部署...远程：远程：！推弃被拒绝到agile-savannah-14413 . remote：要https://git.heroku.com/agile-savannah-14413.git！ [远程拒绝] master - > master（pre-receive hook拒绝）错误：无法将某些引用推送到“https://git.heroku.com/agile-savannah-14413.git”

我遇到了答案here但他的问题是他正在使用 sqlite3 作为他的数据库，但是我删除了它以使用 postgress 代替 .

我仍然遵循那里的指导并删除我的 Gemfile.lock 文件，然后重新运行上面的命令并遇到同样的问题 .

我在这里错过了什么吗？

ruby-on-rails ruby git heroku