Я получаю следующую ошибку при развертывании моего приложения на heroku.
Он отлично работает на моем локальном сервере в производственной среде, когда я запускаю RAILS_ENV = production rails s -p 3000.
Так что, похоже, ошибка возникает только в heroku.
Error during failsafe response: Webpacker can't find application in /app/public/packs/manifest.json.
Possible causes:
1. You want to set webpacker.yml value of compile to true for your environment
unless you are using the `webpack -w` or the webpack-dev-server.
2. webpack has not yet re-run to reflect updates.
3. You have misconfigured Webpacker's config/webpacker.yml file.
4. Your webpack configuration is not creating a manifest.
Your manifest contains:
{
}
Ошибка исходит из строки:
<%= javascript_pack_tag 'application' %>
в приложении / views / layouts / application. html .erb file.
Если я удалите строку, которую загружает сайт, но текстовый редактор действий не работает.
Я попытался запустить следующее:
rm -rf node_modules
rails assets:clobber
yarn
rails assets:precompile
и
rails webpacker:install
, как описано здесь: Webpacker не может найти приложение , но ничего не работает
Я уже установил значение web packer.yml в true, и это мой файл config / webpacker.yml
# Note: You must restart bin/webpack-dev-server for changes to take effect
default: &default
source_path: app/javascript
source_entry_path: packs
public_root_path: public
public_output_path: packs
cache_path: tmp/cache/webpacker
check_yarn_integrity: false
webpack_compile_output: true
# Additional paths webpack should lookup modules
# ['app/assets', 'engine/foo/app/assets']
resolved_paths: []
# Reload manifest.json on all requests so we reload latest compiled packs
cache_manifest: false
# Extract and emit a css file
extract_css: false
static_assets_extensions:
- .jpg
- .jpeg
- .png
- .gif
- .tiff
- .ico
- .svg
- .eot
- .otf
- .ttf
- .woff
- .woff2
extensions:
- .mjs
- .js
- .sass
- .scss
- .css
- .module.sass
- .module.scss
- .module.css
- .png
- .svg
- .gif
- .jpeg
- .jpg
development:
<<: *default
compile: true
# Verifies that correct packages and versions are installed by inspecting package.json, yarn.lock, and node_modules
check_yarn_integrity: true
# Reference: https://webpack.js.org/configuration/dev-server/
dev_server:
https: false
host: localhost
port: 3035
public: localhost:3035
hmr: false
# Inline should be set to true if using HMR
inline: true
overlay: true
compress: true
disable_host_check: true
use_local_ip: false
quiet: false
pretty: false
headers:
'Access-Control-Allow-Origin': '*'
watch_options:
ignored: '**/node_modules/**'
test:
<<: *default
compile: true
# Compile test packs to a separate directory
public_output_path: packs-test
production:
<<: *default
# Production depends on precompilation of packs prior to booting for performance.
compile: true
# Extract and emit a css file
extract_css: true
# Cache manifest.json for performance
cache_manifest: true
public / packs / manifest. json:
{
"application.js": "/packs/js/application-f887cd8adbcc18cacc27.js",
"application.js.map": "/packs/js/application-f887cd8adbcc18cacc27.js.map",
"entrypoints": {
"application": {
"js": [
"/packs/js/application-f887cd8adbcc18cacc27.js"
],
"js.map": [
"/packs/js/application-f887cd8adbcc18cacc27.js.map"
]
}
}
}