Question

我有一个在本地工作得很好的rails应用程序，但是当我在heroku上推送它时显示＆＃34;应用程序错误＆＃34; a link

我尝试访问heroku应用程序日志，但没有任何东西，但当我尝试运行heroko控制台时，它开始给出这个错误：

source 'https://rubygems.org'

git_source(:github) do |repo_name|
  repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
  "https://github.com/#{repo_name}.git"
end


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.2'
# Use sqlite3 as the database for Active Record

group :production do
    gem 'pg', '0.18.1'
    gem 'rails_12factor'
end

group :development, :test do
    gem 'sqlite3'
    gem 'byebug'
end

# Use Puma as the app server
gem 'puma', '~> 3.0'
# 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', '~> 4.2'
# 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 navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

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

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

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console', '>= 3.3.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

我的Gemfile

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
#
default: &default
  adapter: sqlite3
  pool: 5
  timeout: 5000

development:
  <<: *default
  database: db/development.sqlite3

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: db/test.sqlite3

production:
  <<: *default
  database: db/production.sqlite3

我的Database.yml

        getChildren().add(browser);

Answer 1

您正在使用此代码将sqlite设置为默认数据库

default: &default
  adapter: sqlite3
  pool: 5
  timeout: 5000

所以使用这段代码，它被设置为sqlite，因为你包含了defualt值，这对于heroku不起作用，因为你不能在heroku上使用sqlite。

production:
  <<: *default
  database: db/production.sqlite3

您应该更改database.yml文件中的生产数据库值。

production:
  adapter: postgresql
  pool: 5
  timeout: 5000
  database: app_name

Answer 2

在您的database.yml文件中，将生产数据库更改为使用postgresql，因为heroku不支持sqlite3。

例如：

production:
  database: example_production
  adapter: postgresql
  host: localhost
  password:

Rails应用程序在本地工作但不在生产中

2 个答案: