Rails 6.1：Webpacker 找不到 application.js答案

【问题标题】：Rails 6.1: Webpacker can't find application.jsRails 6.1：Webpacker 找不到 application.js
【发布时间】：2021-12-22 12:39:36
【问题描述】：

使用 rails 6.1.4 安装新应用程序。运行应用程序时，我得到以下信息......

来自浏览器：

Showing /home/james/ReachTech/app/views/layouts/application.html.erb where line #10 raised:

Webpacker can't find application.js in /home/james/ReachTech/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:
{
}
Extracted source (around line #10):
8
9
10
11
12
13
              

    <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>

我想使用 javascript。我已经多次重新启动应用程序。有什么建议吗？

【问题讨论】：

请分享layouts/application.html.erb的相关部分。另见文档：edgeguides.rubyonrails.org/webpacker.html
您是否尝试过运行yarn install，以便它安装所需的纱线包以使 webpack 工作？

标签： javascript ruby-on-rails ruby webpack

【解决方案1】：

请运行此命令

yarn install

【讨论】：