调试 Heroku 错误日志
Debugging Heroku Error Logs
刚刚尝试通过 heroku 部署我的第一个应用程序。一切都已连接，但由于某种原因，应用程序不会显示，保留默认应用程序。我已经安装了日志，但他们跟踪的错误在我什至没有访问过的页面上（或者知道如何访问）。我能够在此块中更改的唯一错误是应用程序页面上的语法错误
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `require': /app/config/application.rb:9: class/module name must be CONSTANT (SyntaxError) from /app/vendor/bundle/ruby/2.0.0/gems/railties-
4.2.0/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /app/vendor/bundle/ruby/2.0.0/gems/railties-
4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap' from
/app/vendor/bundle/ruby/2.0.0/gems/railties-
4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server' from /app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in
`<top (required)>' from bin/rails:8:in `require' from bin/rails:8:in `<main>'
我的控制器可以在下面找到
应用程序控制器
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
end
上市控制人
class ListingsController < ApplicationController
before_action :set_listing, only: [:show, :edit, :update, :destroy]
# GET /listings
# GET /listings.json
def index
@listings = Listing.all
end
# GET /listings/1
# GET /listings/1.json
def show
end
# GET /listings/new
def new
@listing = Listing.new
end
# GET /listings/1/edit
def edit
end
# POST /listings
# POST /listings.json
def create
@listing = Listing.new(listing_params)
respond_to do |format|
if @listing.save
format.html { redirect_to @listing, notice: 'Listing was successfully created.' }
format.json { render :show, status: :created, location: @listing }
else
format.html { render :new }
format.json { render json: @listing.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /listings/1
# PATCH/PUT /listings/1.json
def update
respond_to do |format|
if @listing.update(listing_params)
format.html { redirect_to @listing, notice: 'Listing was successfully updated.' }
format.json { render :show, status: :ok, location: @listing }
else
format.html { render :edit }
format.json { render json: @listing.errors, status: :unprocessable_entity }
end
end
end
# DELETE /listings/1
# DELETE /listings/1.json
def destroy
@listing.destroy
respond_to do |format|
format.html { redirect_to listings_url, notice: 'Listing was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_listing
@listing = Listing.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def listing_params
params.require(:listing).permit(:name, :description, :price, :image)
end
end
Application.rb
require File.expand_path('../boot', __FILE__)
require 'rails/all'
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)
module etsy_demo
class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = 'Central Time (US & Canada)'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de
# Do not swallow errors in after_commit/after_rollback callbacks.
config.active_record.raise_in_transactional_callbacks = true
end
end
更新 改回 Etsy-Demo 后出现此错误
/app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/railtie/configuration.rb:95:in `method_missing': undefined method `active_record' for #<Rails::Application::Configuration:0x007f8c37d4abf0> (NoMethodError) from /app/config/application.rb:24:in `<class:Application>' from /app/config/application.rb:10:in `<module:EtsyDemo>' from /app/config/application.rb:9:in `<top (required)>' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `require' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>' from bin/rails:8:in `require' from bin/rails:8:in `<main>'
新错误
/app/config/application.rb:5:in require': cannot load such file -- active_record/railtie (LoadError) from /app/config/application.rb:5:in' 来自 /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in require' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in阻止来自 /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in tap' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:inserver' 来自 /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in run_command!' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in' 来自 bin/rails:8:in require' from bin/rails:8:in' 异常
» 09:07:51.127
解决方案
我的问题是因为我的 Gemfile 没有组织。我的应用程序的许多部分仅在需要安排时用于开发或整个应用程序。我在下面附上了我的新 Gemfile
source 'https://rubygems.org'
ruby '2.2.0'
gem 'rails', '4.2.0'
# 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/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
gem 'bootstrap-sass', '~> 3.1.1.0'
gem "paperclip", "~> 4.2"
# 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
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug'
gem 'sqlite3'
# 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'
gem 'rails_12factor'
end
我认为问题在于您的 controllers/models 中有一个 class 名称大写不正确。
去检查你的 models/controllers 是否有正确的大小写，例如
class YourController < ApplicationController
end
而不是
class yourcontroller < ApplicationController
end
然后重新部署。
更新：
尝试将 config/Application.rb 中的 module etsy_demo 更改为：
module EtsyDemo
更新编号2:
添加到config/Application.rb:
require 'rails/all'
require "active_record/railtie"
或注释掉：
config.active_record.raise_in_transactional_callbacks = true
刚刚尝试通过 heroku 部署我的第一个应用程序。一切都已连接，但由于某种原因，应用程序不会显示，保留默认应用程序。我已经安装了日志，但他们跟踪的错误在我什至没有访问过的页面上（或者知道如何访问）。我能够在此块中更改的唯一错误是应用程序页面上的语法错误
/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `require': /app/config/application.rb:9: class/module name must be CONSTANT (SyntaxError) from /app/vendor/bundle/ruby/2.0.0/gems/railties-
4.2.0/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /app/vendor/bundle/ruby/2.0.0/gems/railties-
4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap' from
/app/vendor/bundle/ruby/2.0.0/gems/railties-
4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server' from /app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in
`<top (required)>' from bin/rails:8:in `require' from bin/rails:8:in `<main>'
我的控制器可以在下面找到 应用程序控制器
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
end
上市控制人
class ListingsController < ApplicationController
before_action :set_listing, only: [:show, :edit, :update, :destroy]
# GET /listings
# GET /listings.json
def index
@listings = Listing.all
end
# GET /listings/1
# GET /listings/1.json
def show
end
# GET /listings/new
def new
@listing = Listing.new
end
# GET /listings/1/edit
def edit
end
# POST /listings
# POST /listings.json
def create
@listing = Listing.new(listing_params)
respond_to do |format|
if @listing.save
format.html { redirect_to @listing, notice: 'Listing was successfully created.' }
format.json { render :show, status: :created, location: @listing }
else
format.html { render :new }
format.json { render json: @listing.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /listings/1
# PATCH/PUT /listings/1.json
def update
respond_to do |format|
if @listing.update(listing_params)
format.html { redirect_to @listing, notice: 'Listing was successfully updated.' }
format.json { render :show, status: :ok, location: @listing }
else
format.html { render :edit }
format.json { render json: @listing.errors, status: :unprocessable_entity }
end
end
end
# DELETE /listings/1
# DELETE /listings/1.json
def destroy
@listing.destroy
respond_to do |format|
format.html { redirect_to listings_url, notice: 'Listing was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_listing
@listing = Listing.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def listing_params
params.require(:listing).permit(:name, :description, :price, :image)
end
end
Application.rb
require File.expand_path('../boot', __FILE__)
require 'rails/all'
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)
module etsy_demo
class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = 'Central Time (US & Canada)'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de
# Do not swallow errors in after_commit/after_rollback callbacks.
config.active_record.raise_in_transactional_callbacks = true
end
end
更新 改回 Etsy-Demo 后出现此错误
/app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/railtie/configuration.rb:95:in `method_missing': undefined method `active_record' for #<Rails::Application::Configuration:0x007f8c37d4abf0> (NoMethodError) from /app/config/application.rb:24:in `<class:Application>' from /app/config/application.rb:10:in `<module:EtsyDemo>' from /app/config/application.rb:9:in `<top (required)>' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `require' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>' from bin/rails:8:in `require' from bin/rails:8:in `<main>'
新错误
/app/config/application.rb:5:in require': cannot load such file -- active_record/railtie (LoadError) from /app/config/application.rb:5:in' 来自 /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in require' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in阻止来自 /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in tap' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:inserver' 来自 /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in run_command!' from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in' 来自 bin/rails:8:in require' from bin/rails:8:in' 异常
» 09:07:51.127
解决方案
我的问题是因为我的 Gemfile 没有组织。我的应用程序的许多部分仅在需要安排时用于开发或整个应用程序。我在下面附上了我的新 Gemfile
source 'https://rubygems.org'
ruby '2.2.0'
gem 'rails', '4.2.0'
# 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/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
gem 'bootstrap-sass', '~> 3.1.1.0'
gem "paperclip", "~> 4.2"
# 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
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug'
gem 'sqlite3'
# 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'
gem 'rails_12factor'
end
我认为问题在于您的 controllers/models 中有一个 class 名称大写不正确。
去检查你的 models/controllers 是否有正确的大小写，例如
class YourController < ApplicationController
end
而不是
class yourcontroller < ApplicationController
end
然后重新部署。
更新：
尝试将 config/Application.rb 中的 module etsy_demo 更改为：
module EtsyDemo
更新编号2:
添加到config/Application.rb:
require 'rails/all'
require "active_record/railtie"
或注释掉：
config.active_record.raise_in_transactional_callbacks = true