我在Heroku上更新了我的应用程序，从使用Webpacker的Rails 6更新到使用esbuild的Rails 7。
我在生产中收到的错误如下：
The asset "application.js" is not present in the asset pipeline
我进入我的Heroku服务器，发现application.js文件位于app/assets/builds中，在我的manifest.js中，它的设置如下：
//= link_tree ../images
//= link_tree ../builds
但是，当我检查public/assets/*文件夹时，除了application.js和一个css文件外，所有文件都在那里。
根据Heroku在他们网站上的推荐，我也在本地尝试了以下代码：
RAILS_ENV=production bundle exec rake assets:precompile
这会将包括application.js在内的所有文件编译到public/assets/*中，并在本地正常工作。在Heroku生产上，即使我尝试手动编译，application.js也不会复制到public/assets/*中
我的esbuild脚本如下所示，工作起来没有问题：
"build": "esbuild app/javascript/*.* --bundle --outdir=app/assets/builds"
有没有人知道将application.js加载到公共/资产中的线索或解决方案，这样我就不会出现以下错误？
The asset "application.js" is not present in the asset pipeline
这是app/javascript/application.js
// Entry point for the build script in your package.json
import "@hotwired/turbo-rails"
import "./controllers"
import * as bootstrap from "bootstrap"
import "lazysizes"
import "@fortawesome/fontawesome-free/js/all"
if ('scrollRestoration' in window.history) {
window.history.scrollRestoration = 'manual';
}
这里有一个css文件也没有编译，也许有连接，但我找不到。(除此文件外，此文件夹中的所有其他css文件都编译为公共/资产(
app/assets/stylesheets/shared/swiper.scss
@import "swiper/swiper.scss";
@import "swiper/modules/navigation/navigation.scss";
@import "swiper/modules/lazy/lazy.scss";
.swiper-button-next {
color: #000000;
}
.swiper-button-prev {
color: #000000;
}
我的脚本，将scs到css放入app/assets/builds 的脚本
"build:css": "sass ./app/assets/stylesheets/application.bootstrap.scss:./app/assets/builds/application.css ./app/assets/stylesheets/controllers:./app/assets/builds/controllers ./app/assets/stylesheets/shared:./app/assets/builds/shared ./app/assets/stylesheets/devise:./app/assets/builds/devise ./app/assets/stylesheets/errors.scss:./app/assets/builds/errors.css --no-source-map --load-path=node_modules"
不确定是否有用，但这是我的部署日志。(无错误(
git push heroku master
Enumerating objects: 15, done.
Counting objects: 100% (15/15), done.
Delta compression using up to 12 threads
Compressing objects: 100% (8/8), done.
Writing objects: 100% (8/8), 633 bytes | 633.00 KiB/s, done.
Total 8 (delta 7), reused 0 (delta 0), pack-reused 0
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Building on the Heroku-20 stack
remote: -----> Using buildpack: heroku/ruby
remote: -----> Ruby app detected
remote: -----> Installing bundler 2.2.33
remote: -----> Removing BUNDLED WITH version in the Gemfile.lock
remote: -----> Compiling Ruby/Rails
remote: -----> Using Ruby version: ruby-3.0.2
remote: -----> Installing dependencies using bundler 2.2.33
remote: Running: BUNDLE_WITHOUT='development:test' BUNDLE_PATH=vendor/bundle BUNDLE_BIN=vendor/bundle/bin BUNDLE_DEPLOYMENT=1 bundle install -j4
remote: Using rake 13.0.6
remote: Using concurrent-ruby 1.1.9
remote: Using i18n 1.8.11
remote: Using minitest 5.15.0
remote: Using tzinfo 2.0.4
remote: Using activesupport 7.0.0
remote: Using builder 3.2.4
remote: Using erubi 1.10.0
remote: Using racc 1.6.0
remote: Using nokogiri 1.12.5 (x86_64-linux)
remote: Using rails-dom-testing 2.0.3
remote: Using crass 1.0.6
remote: Using loofah 2.13.0
remote: Using rails-html-sanitizer 1.4.2
remote: Using actionview 7.0.0
remote: Using rack 2.2.3
remote: Using rack-test 1.1.0
remote: Using actionpack 7.0.0
remote: Using nio4r 2.5.8
remote: Using websocket-extensions 0.1.5
remote: Using websocket-driver 0.7.5
remote: Using actioncable 7.0.0
remote: Using globalid 1.0.0
remote: Using activejob 7.0.0
remote: Using activemodel 7.0.0
remote: Using activerecord 7.0.0
remote: Using marcel 1.0.2
remote: Using mini_mime 1.1.2
remote: Using activestorage 7.0.0
remote: Using mail 2.7.1
remote: Using actionmailbox 7.0.0
remote: Using actionmailer 7.0.0
remote: Using actiontext 7.0.0
remote: Using public_suffix 4.0.6
remote: Using addressable 2.8.0
remote: Using aws-eventstream 1.2.0
remote: Using aws-sigv4 1.4.0
remote: Using bcrypt 3.1.16
remote: Using msgpack 1.4.2
remote: Using bootsnap 1.9.3
remote: Using method_source 1.0.0
remote: Using thor 1.1.0
remote: Using zeitwerk 2.5.1
remote: Using railties 7.0.0
remote: Using breadcrumbs_on_rails 4.1.0
remote: Using bundler 2.2.33
remote: Using mini_magick 4.11.0
remote: Using ffi 1.15.4
remote: Using ruby-vips 2.1.4
remote: Using image_processing 1.12.1
remote: Using ssrf_filter 1.0.7
remote: Using carrierwave 2.2.2
remote: Using cssbundling-rails 1.0.0
remote: Using orm_adapter 0.5.0
remote: Using responders 3.0.1
remote: Using warden 1.2.9
remote: Using devise 4.8.1
remote: Using unf_ext 0.0.8
remote: Using unf 0.1.4
remote: Using domain_name 0.5.20190701
remote: Using excon 0.89.0
remote: Using ffi-compiler 1.0.1
remote: Using formatador 0.3.0
remote: Using mime-types-data 3.2021.1115
remote: Using mime-types 3.4.1
remote: Using fog-core 2.2.4
remote: Using multi_json 1.15.0
remote: Using fog-json 1.2.0
remote: Using fog-xml 0.1.4
remote: Using ipaddress 0.8.3
remote: Using fog-aws 3.12.0
remote: Using friendly_id 5.4.2
remote: Using heroku-deflater 0.6.3
remote: Using http-cookie 1.0.4
remote: Using http-form_data 2.3.0
remote: Using llhttp-ffi 0.4.0
remote: Using http 5.0.4
remote: Using jbuilder 2.11.4
remote: Using jsbundling-rails 1.0.0
remote: Using json 2.6.1
remote: Using kaminari-core 1.2.1
remote: Using kaminari-actionview 1.2.1
remote: Using kaminari-activerecord 1.2.1
remote: Using kaminari 1.2.1
remote: Using meta-tags 2.16.0
remote: Using oauth 0.5.8
remote: Using pg 1.2.3
remote: Using puma 4.3.10
remote: Using rails 7.0.0
remote: Using rakuten_web_service 1.13.1
remote: Using ransack 2.4.2 from https://github.com/activerecord-hackery/ransack (at 81910c2@81910c2)
remote: Using sassc 2.4.0
remote: Using sprockets 4.0.2
remote: Using sprockets-rails 3.4.2
remote: Using tilt 2.0.10
remote: Using sassc-rails 2.1.2
remote: Using sass-rails 6.0.0
remote: Using settingslogic 2.0.9
remote: Using sitemap_generator 6.1.2
remote: Using slack-notifier 2.4.0
remote: Using temple 0.8.2
remote: Using slim 4.1.0
remote: Using slim-rails 3.3.0
remote: Using stimulus-rails 1.0.2
remote: Using turbo-rails 1.0.0
remote: Using twitter-ads 10.0.0
remote: Using vacuum 4.0.0
remote: Bundle complete! 49 Gemfile dependencies, 107 gems now installed.
remote: Gems in the groups 'development' and 'test' were not installed.
remote: Bundled gems are installed into `./vendor/bundle`
remote: Bundle completed (0.93s)
remote: Cleaning up the bundler cache.
remote: -----> Installing node-v16.13.1-linux-x64
remote: -----> Installing yarn-v1.22.17
remote: -----> Detecting rake tasks
remote: -----> Preparing app for Rails asset pipeline
remote: Running: rake assets:precompile
remote: DEPRECATION WARNING: `active_support/core_ext/uri` is deprecated and will be removed in Rails 7.1. (called from <main> at /tmp/build_07dca8b4/config/application.rb:7)
remote: yarn install v1.22.17
remote: [1/4] Resolving packages...
remote: [2/4] Fetching packages...
remote: [3/4] Linking dependencies...
remote: [4/4] Building fresh packages...
remote: Done in 5.32s.
remote: yarn run v1.22.17
remote: $ sass ./app/assets/stylesheets/application.bootstrap.scss:./app/assets/builds/application.css ./app/assets/stylesheets/controllers:./app/assets/builds/controllers ./app/assets/stylesheets/shared:./app/assets/builds/shared ./app/assets/stylesheets/devise:./app/assets/builds/devise ./app/assets/stylesheets/errors.scss:./app/assets/builds/errors.css --no-source-map --load-path=node_modules
remote: Done in 2.32s.
remote: yarn install v1.22.17
remote: [1/4] Resolving packages...
remote: success Already up-to-date.
remote: Done in 0.10s.
remote: yarn run v1.22.17
remote: $ esbuild app/javascript/*.* --bundle --outdir=app/assets/builds
remote:
remote: app/assets/builds/application.js 2.1mb ⚠️
remote:
remote: Done in 0.22s.
remote: Asset precompilation completed (10.98s)
remote: Cleaning assets
remote: Running: rake assets:clean
remote: DEPRECATION WARNING: `active_support/core_ext/uri` is deprecated and will be removed in Rails 7.1. (called from <main> at /tmp/build_07dca8b4/config/application.rb:7)
remote: -----> Detecting rails configuration
remote:
remote: ###### WARNING:
remote:
remote: There is a more recent Ruby version available for you to use:
remote:
remote: 3.0.3
remote:
remote: The latest version will include security and bug fixes. We always recommend
remote: running the latest version of your minor release.
remote:
remote: Please upgrade your Ruby version.
remote:
remote: For all available Ruby versions see:
remote: https://devcenter.heroku.com/articles/ruby-support#supported-runtimes
remote:
remote: ###### WARNING:
remote:
remote: No Procfile detected, using the default web server.
remote: We recommend explicitly declaring how to boot your server process via a Procfile.
remote: https://devcenter.heroku.com/articles/ruby-default-web-server
remote:
remote:
remote: -----> Discovering process types
remote: Procfile declares types -> (none)
remote: Default types for buildpack -> console, rake, web
remote:
remote: -----> Compressing...
remote: Done: 101.3M
remote: -----> Launching...
remote: Released vxxxx
remote: https://xxxxxxxxx.herokuapp.com/ deployed to Heroku
remote:
remote: Verifying deploy... done.
To https://git.heroku.com/xxxxxxxxx.git
xxxxx..xxxxxx master -> master
更新
当我部署到Heroku时，Heroku首先运行assets compile，然后构建包json。因此，编译运行时builds文件夹为空，application.js不会复制到public/assets。
现在为了解决这个问题，我从git-ignore中删除了builds文件夹，并将构建中的文件添加到存储库中。因此，现在当compile运行时，构建文件夹会包含文件，并将其编译为公共/资产。我知道这不是最好的解决方法，但现在这是我知道的唯一解决方法
如果有人知道如何编辑heroku部署脚本以在包json构建脚本后运行assetscompile，那么它就解决了问题。
是否已将/app/assets/builds/.keep推送到存储库？
问题可能是，如果在rake assets:precompile期间没有空文件夹，那么即使jsbundling-rails(例如；或类似的(在内部执行类似Rake::Task["assets:precompile"].enhance(["build"])的操作，rake assets:precompile也不会考虑文件夹本身，即使enhance的rake任务填充了它。
而如果它最初存在&空的——一切都会好起来的。
因此，在我的情况下，我不需要推送包含所有真实内容的整个/app/assets/builds文件夹，但我需要推送.keep，以便在运行assets:precompile之前出现一个空文件夹。
然后.gitignore只显示其内容，但要确保文件夹在克隆repo:后不会消失
/app/assets/builds/*
!/app/assets/builds/.keep
添加：https://github.com/rails/jsbundling-rails
当您将应用程序部署到生产环境中时，javascript:build任务会附加到assets:precompile任务，以确保package.json中的所有包依赖项都已通过yarn安装，然后运行yarn build来处理所有入口点，就像在开发中一样。然后，资产管道会拾取后一个文件，对其进行消化，并将其复制到公共/资产中，就像任何其他资产管道文件一样。。。
删除uglifier并安装terser
gem 'terser'
// config/environments/production.rb
config.assets.js_compressor = :terser
我也遇到过类似的问题，但在部署过程中没有安装esbuild，这导致我在故障排除过程中看到了这个页面。
我已经提交了带有.yarn-integrity文件的node_modules文件夹。对我来说，修复它的方法是删除node_modules文件夹，运行yarn install，确保在我的.gitignore文件中忽略node_modules文件夹，并推送提交。
一旦我部署了应用程序，部署就成功了。