[英]Rail “cannot load such file — rack/handler/rails__env=production (LoadError)”
我是新手。 我的Rails应用程序在开发模式下运行良好。 但是，当我运行“ rails server RAILS_ENV = production”时，标题中出现了错误消息。 当在Heroku上部署时，该应用程序页面还会显示“出了点问题”。 我使用CSS并添加了图像样式。
我已经运行了“ rake asset：precompile”和“ RAILS_ENV =生产包执行rake asset：precompile”，但这似乎没有任何改变。
我还设置了秘密基本密钥。
我现在很困惑。
这是我的database.yml文件：
# SQLite version 3.x
# gem install sqlite3
#
# Ensure the SQLite 3 gem is defined in your Gemfile
# gem 'sqlite3'
#
default: &default
adapter: sqlite3
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 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
config / environments / production.rb文件
Rails.application.configure do
# Settings specified here will take precedence over those in config/application.rb.
# Code is not reloaded between requests.
config.cache_classes = true
# Eager load code on boot. This eager loads most of Rails and
# your application in memory, allowing both threaded web servers
# and those relying on copy on write to perform better.
# Rake tasks automatically ignore this option for performance.
config.eager_load = true
# Full error reports are disabled and caching is turned on.
config.consider_all_requests_local = false
config.action_controller.perform_caching = true
# Attempt to read encrypted secrets from `config/secrets.yml.enc`.
# Requires an encryption key in `ENV["RAILS_MASTER_KEY"]` or
# `config/secrets.yml.key`.
config.read_encrypted_secrets = true
# Disable serving static files from the `/public` folder by default since
# Apache or NGINX already handles this.
config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
# Compress JavaScripts and CSS.
config.assets.js_compressor = :uglifier
# config.assets.css_compressor = :sass
# Do not fallback to assets pipeline if a precompiled asset is missed.
config.assets.compile = false
# `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
# Enable serving of images, stylesheets, and JavaScripts from an asset server.
# config.action_controller.asset_host = 'http://assets.example.com'
# Specifies the header that your server uses for sending files.
# config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
# config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
# Mount Action Cable outside main process or domain
# config.action_cable.mount_path = nil
# config.action_cable.url = 'wss://example.com/cable'
# config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
# Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
# config.force_ssl = true
# Use the lowest log level to ensure availability of diagnostic information
# when problems arise.
config.log_level = :debug
# Prepend all log lines with the following tags.
config.log_tags = [ :request_id ]
# Use a different cache store in production.
# config.cache_store = :mem_cache_store
# Use a real queuing backend for Active Job (and separate queues per environment)
# config.active_job.queue_adapter = :resque
# config.active_job.queue_name_prefix = "sample_app_#{Rails.env}"
config.action_mailer.perform_caching = false
# Ignore bad email addresses and do not raise email delivery errors.
# Set this to true and configure the email server for immediate delivery to raise delivery errors.
# config.action_mailer.raise_delivery_errors = false
# Enable locale fallbacks for I18n (makes lookups for any locale fall back to
# the I18n.default_locale when a translation cannot be found).
config.i18n.fallbacks = true
# Send deprecation notices to registered listeners.
config.active_support.deprecation = :notify
# Use default logging formatter so that PID and timestamp are not suppressed.
config.log_formatter = ::Logger::Formatter.new
# Use a different logger for distributed setups.
# require 'syslog/logger'
# config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
if ENV["RAILS_LOG_TO_STDOUT"].present?
logger = ActiveSupport::Logger.new(STDOUT)
logger.formatter = config.log_formatter
config.logger = ActiveSupport::TaggedLogging.new(logger)
end
# Do not dump schema after migrations.
config.active_record.dump_schema_after_migration = false
end
production.log：
D, [2019-01-08T17:10:25.357047 #7073] DEBUG -- : [1m[35m (0.1ms)[0m [1m[34mSELECT sqlite_version(*)[0m
D, [2019-01-08T17:10:25.363611 #7073] DEBUG -- : [1m[35m (6.4ms)[0m [1m[35mCREATE TABLE "schema_migrations" ("version" varchar NOT NULL PRIMARY KEY)[0m
D, [2019-01-08T17:10:25.378994 #7073] DEBUG -- : [1m[35m (6.8ms)[0m [1m[35mCREATE TABLE "ar_internal_metadata" ("key" varchar NOT NULL PRIMARY KEY, "value" varchar, "created_at" datetime NOT NULL, "updated_at" datetime NOT NULL)[0m
D, [2019-01-08T17:10:25.389773 #7073] DEBUG -- : [1m[35m (0.1ms)[0m [1m[34mSELECT "schema_migrations"."version" FROM "schema_migrations" ORDER BY "schema_migrations"."version" ASC[0m
I, [2019-01-08T17:10:25.389869 #7073] INFO -- : Migrating to CreateUsers (20190107033135)
D, [2019-01-08T17:10:25.392644 #7073] DEBUG -- : [1m[35m (0.1ms)[0m [1m[36mbegin transaction[0m
D, [2019-01-08T17:10:25.394747 #7073] DEBUG -- : [1m[35m (1.5ms)[0m [1m[35mCREATE TABLE "users" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar, "email" varchar, "created_at" datetime NOT NULL, "updated_at" datetime NOT NULL)[0m
D, [2019-01-08T17:10:25.398043 #7073] DEBUG -- : [1m[35mSQL (0.1ms)[0m [1m[32mINSERT INTO "schema_migrations" ("version") VALUES (?)[0m [["version", "20190107033135"]]
D, [2019-01-08T17:10:25.409467 #7073] DEBUG -- : [1m[35m (11.2ms)[0m [1m[36mcommit transaction[0m
I, [2019-01-08T17:10:25.409571 #7073] INFO -- : Migrating to AddPasswordDigestToUsers (20190108070109)
D, [2019-01-08T17:10:25.410533 #7073] DEBUG -- : [1m[35m (0.1ms)[0m [1m[36mbegin transaction[0m
D, [2019-01-08T17:10:25.412416 #7073] DEBUG -- : [1m[35m (1.5ms)[0m [1m[35mALTER TABLE "users" ADD "password_digest" varchar[0m
D, [2019-01-08T17:10:25.413900 #7073] DEBUG -- : [1m[35mSQL (0.2ms)[0m [1m[32mINSERT INTO "schema_migrations" ("version") VALUES (?)[0m [["version", "20190108070109"]]
D, [2019-01-08T17:10:25.419022 #7073] DEBUG -- : [1m[35m (4.8ms)[0m [1m[36mcommit transaction[0m
D, [2019-01-08T17:10:25.426027 #7073] DEBUG -- : [1m[36mActiveRecord::InternalMetadata Load (0.2ms)[0m [1m[34mSELECT "ar_internal_metadata".* FROM "ar_internal_metadata" WHERE "ar_internal_metadata"."key" = ? LIMIT ?[0m [["key", "environment"], ["LIMIT", 1]]
D, [2019-01-08T17:10:25.438559 #7073] DEBUG -- : [1m[35m (0.1ms)[0m [1m[36mbegin transaction[0m
D, [2019-01-08T17:10:25.440730 #7073] DEBUG -- : [1m[35mSQL (1.3ms)[0m [1m[32mINSERT INTO "ar_internal_metadata" ("key", "value", "created_at", "updated_at") VALUES (?, ?, ?, ?)[0m [["key", "environment"], ["value", "production"], ["created_at", "2019-01-08 09:10:25.438804"], ["updated_at", "2019-01-08 09:10:25.438804"]]
D, [2019-01-08T17:10:25.443677 #7073] DEBUG -- : [1m[35m (2.8ms)[0m [1m[36mcommit transaction[0m
I, [2019-01-08T22:16:22.532530 #17657] INFO -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] Started GET "/" for 127.0.0.1 at 2019-01-08 22:16:22 +0800
I, [2019-01-08T22:16:22.539041 #17657] INFO -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] Processing by StaticPagesController#home as HTML
I, [2019-01-08T22:16:22.557513 #17657] INFO -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T22:16:22.562687 #17657] INFO -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] Rendered static_pages/home.html.erb within layouts/application (5.0ms)
I, [2019-01-08T22:16:22.562880 #17657] INFO -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] Completed 500 Internal Server Error in 24ms
F, [2019-01-08T22:16:22.563908 #17657] FATAL -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9]
F, [2019-01-08T22:16:22.563949 #17657] FATAL -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T22:16:22.564060 #17657] FATAL -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] 10: </div>
[c0464130-5e13-4634-8d0f-10cbcf05a7c9] 11:
[c0464130-5e13-4634-8d0f-10cbcf05a7c9] 12: <div class="center">
[c0464130-5e13-4634-8d0f-10cbcf05a7c9] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[c0464130-5e13-4634-8d0f-10cbcf05a7c9] 14: 'http://rubyonrails.org' %>
[c0464130-5e13-4634-8d0f-10cbcf05a7c9] 15: </div>
F, [2019-01-08T22:16:22.564097 #17657] FATAL -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9]
F, [2019-01-08T22:16:22.564123 #17657] FATAL -- : [c0464130-5e13-4634-8d0f-10cbcf05a7c9] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb__3702704161608906257_47204760052880'
I, [2019-01-08T22:16:23.922999 #17657] INFO -- : [6e17805c-762e-46b7-9b5f-729658819f90] Started GET "/" for 127.0.0.1 at 2019-01-08 22:16:23 +0800
I, [2019-01-08T22:16:23.923668 #17657] INFO -- : [6e17805c-762e-46b7-9b5f-729658819f90] Processing by StaticPagesController#home as HTML
I, [2019-01-08T22:16:23.924316 #17657] INFO -- : [6e17805c-762e-46b7-9b5f-729658819f90] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T22:16:23.925411 #17657] INFO -- : [6e17805c-762e-46b7-9b5f-729658819f90] Rendered static_pages/home.html.erb within layouts/application (1.0ms)
I, [2019-01-08T22:16:23.925590 #17657] INFO -- : [6e17805c-762e-46b7-9b5f-729658819f90] Completed 500 Internal Server Error in 2ms
F, [2019-01-08T22:16:23.931329 #17657] FATAL -- : [6e17805c-762e-46b7-9b5f-729658819f90]
F, [2019-01-08T22:16:23.931422 #17657] FATAL -- : [6e17805c-762e-46b7-9b5f-729658819f90] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T22:16:23.931555 #17657] FATAL -- : [6e17805c-762e-46b7-9b5f-729658819f90] 10: </div>
[6e17805c-762e-46b7-9b5f-729658819f90] 11:
[6e17805c-762e-46b7-9b5f-729658819f90] 12: <div class="center">
[6e17805c-762e-46b7-9b5f-729658819f90] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[6e17805c-762e-46b7-9b5f-729658819f90] 14: 'http://rubyonrails.org' %>
[6e17805c-762e-46b7-9b5f-729658819f90] 15: </div>
F, [2019-01-08T22:16:23.931581 #17657] FATAL -- : [6e17805c-762e-46b7-9b5f-729658819f90]
F, [2019-01-08T22:16:23.931605 #17657] FATAL -- : [6e17805c-762e-46b7-9b5f-729658819f90] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb__3702704161608906257_47204760052880'
I, [2019-01-08T22:16:35.216117 #17657] INFO -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] Started GET "/" for 127.0.0.1 at 2019-01-08 22:16:35 +0800
I, [2019-01-08T22:16:35.216701 #17657] INFO -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] Processing by StaticPagesController#home as HTML
I, [2019-01-08T22:16:35.217283 #17657] INFO -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T22:16:35.218220 #17657] INFO -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] Rendered static_pages/home.html.erb within layouts/application (0.9ms)
I, [2019-01-08T22:16:35.218324 #17657] INFO -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] Completed 500 Internal Server Error in 2ms
F, [2019-01-08T22:16:35.221370 #17657] FATAL -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26]
F, [2019-01-08T22:16:35.221453 #17657] FATAL -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T22:16:35.221604 #17657] FATAL -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] 10: </div>
[ba2e99f7-7388-4d98-b3e8-24699961ce26] 11:
[ba2e99f7-7388-4d98-b3e8-24699961ce26] 12: <div class="center">
[ba2e99f7-7388-4d98-b3e8-24699961ce26] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[ba2e99f7-7388-4d98-b3e8-24699961ce26] 14: 'http://rubyonrails.org' %>
[ba2e99f7-7388-4d98-b3e8-24699961ce26] 15: </div>
F, [2019-01-08T22:16:35.221634 #17657] FATAL -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26]
F, [2019-01-08T22:16:35.221659 #17657] FATAL -- : [ba2e99f7-7388-4d98-b3e8-24699961ce26] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb__3702704161608906257_47204760052880'
I, [2019-01-08T22:19:06.415479 #17772] INFO -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] Started GET "/" for 127.0.0.1 at 2019-01-08 22:19:06 +0800
I, [2019-01-08T22:19:06.464918 #17772] INFO -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] Processing by StaticPagesController#home as HTML
I, [2019-01-08T22:19:06.481732 #17772] INFO -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T22:19:06.483232 #17772] INFO -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] Rendered static_pages/home.html.erb within layouts/application (1.4ms)
I, [2019-01-08T22:19:06.487443 #17772] INFO -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] Completed 500 Internal Server Error in 18ms
F, [2019-01-08T22:19:06.489384 #17772] FATAL -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617]
F, [2019-01-08T22:19:06.489432 #17772] FATAL -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T22:19:06.489538 #17772] FATAL -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] 10: </div>
[e767e84b-ad18-4665-b34d-8fe6f06c1617] 11:
[e767e84b-ad18-4665-b34d-8fe6f06c1617] 12: <div class="center">
[e767e84b-ad18-4665-b34d-8fe6f06c1617] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[e767e84b-ad18-4665-b34d-8fe6f06c1617] 14: 'http://rubyonrails.org' %>
[e767e84b-ad18-4665-b34d-8fe6f06c1617] 15: </div>
F, [2019-01-08T22:19:06.489562 #17772] FATAL -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617]
F, [2019-01-08T22:19:06.489586 #17772] FATAL -- : [e767e84b-ad18-4665-b34d-8fe6f06c1617] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb___2313651232112027984_46983187185460'
I, [2019-01-08T22:19:06.775918 #17772] INFO -- : [3ff8acbe-1d21-4b7d-9931-5408bdace3a7] Started GET "/favicon.ico" for 127.0.0.1 at 2019-01-08 22:19:06 +0800
F, [2019-01-08T22:19:06.776587 #17772] FATAL -- : [3ff8acbe-1d21-4b7d-9931-5408bdace3a7]
F, [2019-01-08T22:19:06.776629 #17772] FATAL -- : [3ff8acbe-1d21-4b7d-9931-5408bdace3a7] ActionController::RoutingError (No route matches [GET] "/favicon.ico"):
F, [2019-01-08T22:19:06.776653 #17772] FATAL -- : [3ff8acbe-1d21-4b7d-9931-5408bdace3a7]
F, [2019-01-08T22:19:06.776684 #17772] FATAL -- : [3ff8acbe-1d21-4b7d-9931-5408bdace3a7] actionpack (5.1.6) lib/action_dispatch/middleware/debug_exceptions.rb:63:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] actionpack (5.1.6) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] railties (5.1.6) lib/rails/rack/logger.rb:36:in `call_app'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] railties (5.1.6) lib/rails/rack/logger.rb:24:in `block in call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] activesupport (5.1.6) lib/active_support/tagged_logging.rb:69:in `block in tagged'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] activesupport (5.1.6) lib/active_support/tagged_logging.rb:26:in `tagged'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] activesupport (5.1.6) lib/active_support/tagged_logging.rb:69:in `tagged'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] railties (5.1.6) lib/rails/rack/logger.rb:24:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] actionpack (5.1.6) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] actionpack (5.1.6) lib/action_dispatch/middleware/request_id.rb:25:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] rack (2.0.6) lib/rack/method_override.rb:22:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] rack (2.0.6) lib/rack/runtime.rb:22:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] activesupport (5.1.6) lib/active_support/cache/strategy/local_cache_middleware.rb:27:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] actionpack (5.1.6) lib/action_dispatch/middleware/executor.rb:12:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] rack (2.0.6) lib/rack/sendfile.rb:111:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] railties (5.1.6) lib/rails/engine.rb:522:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] puma (3.9.1) lib/puma/configuration.rb:224:in `call'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] puma (3.9.1) lib/puma/server.rb:602:in `handle_request'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] puma (3.9.1) lib/puma/server.rb:435:in `process_client'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] puma (3.9.1) lib/puma/server.rb:299:in `block in run'
[3ff8acbe-1d21-4b7d-9931-5408bdace3a7] puma (3.9.1) lib/puma/thread_pool.rb:120:in `block in spawn_thread'
I, [2019-01-08T23:12:04.655503 #18495] INFO -- : [858614f1-263c-4425-ad29-28216da4ba7c] Started GET "/" for 127.0.0.1 at 2019-01-08 23:12:04 +0800
I, [2019-01-08T23:12:04.664984 #18495] INFO -- : [858614f1-263c-4425-ad29-28216da4ba7c] Processing by StaticPagesController#home as HTML
I, [2019-01-08T23:12:04.683226 #18495] INFO -- : [858614f1-263c-4425-ad29-28216da4ba7c] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T23:12:04.685590 #18495] INFO -- : [858614f1-263c-4425-ad29-28216da4ba7c] Rendered static_pages/home.html.erb within layouts/application (2.1ms)
I, [2019-01-08T23:12:04.689870 #18495] INFO -- : [858614f1-263c-4425-ad29-28216da4ba7c] Completed 500 Internal Server Error in 25ms
F, [2019-01-08T23:12:04.690919 #18495] FATAL -- : [858614f1-263c-4425-ad29-28216da4ba7c]
F, [2019-01-08T23:12:04.690961 #18495] FATAL -- : [858614f1-263c-4425-ad29-28216da4ba7c] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T23:12:04.691131 #18495] FATAL -- : [858614f1-263c-4425-ad29-28216da4ba7c] 10: </div>
[858614f1-263c-4425-ad29-28216da4ba7c] 11:
[858614f1-263c-4425-ad29-28216da4ba7c] 12: <div class="center">
[858614f1-263c-4425-ad29-28216da4ba7c] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[858614f1-263c-4425-ad29-28216da4ba7c] 14: 'http://rubyonrails.org' %>
[858614f1-263c-4425-ad29-28216da4ba7c] 15: </div>
F, [2019-01-08T23:12:04.691166 #18495] FATAL -- : [858614f1-263c-4425-ad29-28216da4ba7c]
F, [2019-01-08T23:12:04.691193 #18495] FATAL -- : [858614f1-263c-4425-ad29-28216da4ba7c] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb__2565625493209092932_47386803073300'
I, [2019-01-08T23:12:05.013639 #18495] INFO -- : [412499ac-0294-4208-8ef0-bcba8d7a7b2f] Started GET "/favicon.ico" for 127.0.0.1 at 2019-01-08 23:12:05 +0800
F, [2019-01-08T23:12:05.014374 #18495] FATAL -- : [412499ac-0294-4208-8ef0-bcba8d7a7b2f]
F, [2019-01-08T23:12:05.014436 #18495] FATAL -- : [412499ac-0294-4208-8ef0-bcba8d7a7b2f] ActionController::RoutingError (No route matches [GET] "/favicon.ico"):
F, [2019-01-08T23:12:05.014473 #18495] FATAL -- : [412499ac-0294-4208-8ef0-bcba8d7a7b2f]
F, [2019-01-08T23:12:05.014517 #18495] FATAL -- : [412499ac-0294-4208-8ef0-bcba8d7a7b2f] actionpack (5.1.6) lib/action_dispatch/middleware/debug_exceptions.rb:63:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] actionpack (5.1.6) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] railties (5.1.6) lib/rails/rack/logger.rb:36:in `call_app'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] railties (5.1.6) lib/rails/rack/logger.rb:24:in `block in call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] activesupport (5.1.6) lib/active_support/tagged_logging.rb:69:in `block in tagged'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] activesupport (5.1.6) lib/active_support/tagged_logging.rb:26:in `tagged'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] activesupport (5.1.6) lib/active_support/tagged_logging.rb:69:in `tagged'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] railties (5.1.6) lib/rails/rack/logger.rb:24:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] actionpack (5.1.6) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] actionpack (5.1.6) lib/action_dispatch/middleware/request_id.rb:25:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] rack (2.0.6) lib/rack/method_override.rb:22:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] rack (2.0.6) lib/rack/runtime.rb:22:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] activesupport (5.1.6) lib/active_support/cache/strategy/local_cache_middleware.rb:27:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] actionpack (5.1.6) lib/action_dispatch/middleware/executor.rb:12:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] rack (2.0.6) lib/rack/sendfile.rb:111:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] railties (5.1.6) lib/rails/engine.rb:522:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] puma (3.9.1) lib/puma/configuration.rb:224:in `call'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] puma (3.9.1) lib/puma/server.rb:602:in `handle_request'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] puma (3.9.1) lib/puma/server.rb:435:in `process_client'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] puma (3.9.1) lib/puma/server.rb:299:in `block in run'
[412499ac-0294-4208-8ef0-bcba8d7a7b2f] puma (3.9.1) lib/puma/thread_pool.rb:120:in `block in spawn_thread'
I, [2019-01-08T23:12:09.482461 #18495] INFO -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] Started GET "/" for 127.0.0.1 at 2019-01-08 23:12:09 +0800
I, [2019-01-08T23:12:09.483182 #18495] INFO -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] Processing by StaticPagesController#home as HTML
I, [2019-01-08T23:12:09.483849 #18495] INFO -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T23:12:09.484923 #18495] INFO -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] Rendered static_pages/home.html.erb within layouts/application (1.0ms)
I, [2019-01-08T23:12:09.485027 #18495] INFO -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] Completed 500 Internal Server Error in 2ms
F, [2019-01-08T23:12:09.486572 #18495] FATAL -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163]
F, [2019-01-08T23:12:09.486679 #18495] FATAL -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T23:12:09.486855 #18495] FATAL -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] 10: </div>
[5b65a6f0-4544-4092-a0f8-971e68a3a163] 11:
[5b65a6f0-4544-4092-a0f8-971e68a3a163] 12: <div class="center">
[5b65a6f0-4544-4092-a0f8-971e68a3a163] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[5b65a6f0-4544-4092-a0f8-971e68a3a163] 14: 'http://rubyonrails.org' %>
[5b65a6f0-4544-4092-a0f8-971e68a3a163] 15: </div>
F, [2019-01-08T23:12:09.486881 #18495] FATAL -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163]
F, [2019-01-08T23:12:09.486955 #18495] FATAL -- : [5b65a6f0-4544-4092-a0f8-971e68a3a163] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb__2565625493209092932_47386803073300'
I, [2019-01-08T23:13:02.176411 #18521] INFO -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] Started GET "/" for 127.0.0.1 at 2019-01-08 23:13:02 +0800
I, [2019-01-08T23:13:02.187432 #18521] INFO -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] Processing by StaticPagesController#home as HTML
I, [2019-01-08T23:13:02.205465 #18521] INFO -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] Rendering static_pages/home.html.erb within layouts/application
I, [2019-01-08T23:13:02.209532 #18521] INFO -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] Rendered static_pages/home.html.erb within layouts/application (3.9ms)
I, [2019-01-08T23:13:02.209752 #18521] INFO -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] Completed 500 Internal Server Error in 22ms
F, [2019-01-08T23:13:02.211944 #18521] FATAL -- : [7093aa4a-ce55-426e-be7c-db8144a4931b]
F, [2019-01-08T23:13:02.212100 #18521] FATAL -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] ActionView::Template::Error (The asset "cat.jpeg" is not present in the asset pipeline.):
F, [2019-01-08T23:13:02.212263 #18521] FATAL -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] 10: </div>
[7093aa4a-ce55-426e-be7c-db8144a4931b] 11:
[7093aa4a-ce55-426e-be7c-db8144a4931b] 12: <div class="center">
[7093aa4a-ce55-426e-be7c-db8144a4931b] 13: <%= link_to image_tag("cat.jpeg", alt: "Cat logo"),
[7093aa4a-ce55-426e-be7c-db8144a4931b] 14: 'http://rubyonrails.org' %>
[7093aa4a-ce55-426e-be7c-db8144a4931b] 15: </div>
F, [2019-01-08T23:13:02.214315 #18521] FATAL -- : [7093aa4a-ce55-426e-be7c-db8144a4931b]
F, [2019-01-08T23:13:02.214366 #18521] FATAL -- : [7093aa4a-ce55-426e-be7c-db8144a4931b] app/views/static_pages/home.html.erb:13:in `_app_views_static_pages_home_html_erb___1013939282347745016_47015315334380'
感谢您的帮助/提示/建议！
正确的命令如下：
rails server -e production
我想这也可行：
RAILS_ENV=production rails s
如果您在计算机上运行，则应调用以下命令：
bundle exec rails server -e production
在heroku中，您无需执行任何操作。 它会检测到您正在运行Ruby on Rails应用程序，并编译资产并使用正确的rails server命令启动资产。
看一下heroku中的日志：
heroku logs
最常见的错误是，如果运行了案例，则忘记运行迁移：
heroku run rake db:migrate
Docker编译失败并显示“ require”：无法加载此类文件-机架/处理器/导轨（LoadError）
[英]Docker compose up fails with `require': cannot load such file — rack/handler/rails (LoadError)
LoadError：无法加载此类文件— phusion_passenger / rack_handler
[英]LoadError: cannot load such file — phusion_passenger/rack_handler
Rails 服务器和 Rails 控制台崩溃：要求'：无法加载此类文件 -- 机架/保护 (LoadError)
[英]Rails server and Rails console crash with: require': cannot load such file -- rack/protection (LoadError)
`require'：无法加载这样的文件 - rack / cache / entity_store（LoadError）
[英]`require': cannot load such file — rack/cache/entity_store (LoadError)
`require'：无法加载此类文件-机架式网络控制台（LoadError）
[英]`require': cannot load such file — rack-webconsole (LoadError)
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