在 Rails 中加载 webpack javascript 时出现 EOFError

如何解决在 Rails 中加载 webpack javascript 时出现 EOFError

我的 Rails 6 项目中有一个文件 app/javascript/packs/application.js。当我加载站点的本地开发版本时，它会尝试通过 http://localhost:4000/packs/js/application-ed3ae63cdf581cdb86b0.js 检索它（我在自定义端口上运行以避免与另一个应用程序发生冲突） ，但对 JS 文件的请求以 500 失败：

Puma caught this error: end of file reached (EOFError)
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/2.6.0/net/protocol.rb:225:in `rbuf_fill'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/2.6.0/net/protocol.rb:191:in `readuntil'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/2.6.0/net/protocol.rb:201:in `readline'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/2.6.0/net/http/response.rb:40:in `read_status_line'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/2.6.0/net/http/response.rb:29:in `read_new'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/rack-proxy-0.6.5/lib/net_http_hacked.rb:53:in `begin_request_hacked'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/rack-proxy-0.6.5/lib/rack/http_streaming_response.rb:60:in `response'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/rack-proxy-0.6.5/lib/rack/http_streaming_response.rb:29:in `headers'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/rack-proxy-0.6.5/lib/rack/proxy.rb:120:in `perform_request'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/webpacker-4.3.0/lib/webpacker/dev_server_proxy.rb:21:in `perform_request'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/rack-proxy-0.6.5/lib/rack/proxy.rb:57:in `call'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/railties-6.0.3.3/lib/rails/engine.rb:527:in `call'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/puma-4.3.6/lib/puma/configuration.rb:228:in `call'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/puma-4.3.6/lib/puma/server.rb:713:in `handle_request'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/puma-4.3.6/lib/puma/server.rb:472:in `process_client'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/puma-4.3.6/lib/puma/server.rb:328:in `block in run'
/Users/sam/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/puma-4.3.6/lib/puma/thread_pool.rb:134:in `block in spawn_thread'

该文件在本地不存在：

$ ls public/packs/js/application-ed3ae63cdf581cdb86b0.js
ls: public/packs/js/application-ed3ae63cdf581cdb86b0.js: No such file or directory

但是带有另一个指纹的版本可以（并且是非空的）：

$ ls -alh public/packs/js/application-*
-rw-r--r--  1 sam  staff   188K 24 Feb 17:58 public/packs/js/application-fdef50bf044896f1dc71.js
-rw-r--r--  1 sam  staff   212K 24 Feb 17:58 public/packs/js/application-fdef50bf044896f1dc71.js.map

我无法让我的网站请求正确的文件。按照this，我试过了

rake assets:clean
rake assets:precompile
touch tmp/restart.txt

但无济于事。我也试过一个私人浏览器窗口，清除浏览器缓存和一个不同的浏览器。

我使用的是 bin/server 而不是 bin/webpacker-dev-server 并且没有更改我的 webpacker.yml（它是在初始化时自动创建的，然后在我安装 React 时自动更新），但是如果有帮助，它看起来像这样：

# 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:
    - .jsx
    - .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: false

  # Extract and emit a css file
  extract_css: true

  # Cache manifest.json for performance
  cache_manifest: true

我错过了什么？提前致谢！

解决方法

看到您没有使用开发服务器，您会想到几件事，很可能在 public/packs 中有旧版本的资产。

尝试删除该包文件夹并运行 bin/server

,

我在另一个场合遇到了这个问题的一个变种（同样的错误，但正确名称的文件在在public/packs/js中）并设法通过不再运行我的Rails应用程序来解决它在自定义端口上。

此外，当我停止该服务器并在重新应用自定义端口的情况下重新运行它时，资产也会在该上下文中正确加载。