require_tree参数必须是Rails 5升级应用程序中的目录
我刚刚将我的应用程序从Rails 4.2.7升级到Rails 5.0.0.1 。 我使用RailsDiff来确保我已经覆盖了所有内容，我相信我做到了。 到目前为止，一切都运行良好，直到加载我的应用程序。
现在我看到了这个错误：
Sprockets::ArgumentError at / require_tree argument must be a directory
这是我的application.css ：
/* * This is a manifest file that'll be compiled into application.css, which will include all the files * listed below. * * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets, * or any plugin's vendor/assets/stylesheets directory can be referenced here using a relative path. * * You're free to add application-wide styles to this file and they'll appear at the bottom of the * compiled file so the styles you add here take precedence over styles defined in any other CSS/SCSS * files in this directory. Styles in this file should be added after the last require_* statement. * It is generally better to create a new file per style scope. * *= require_tree . *= require_self */
这是我的application.js
// This is a manifest file that'll be compiled into application.js, which will include all the files // listed below. // // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts, // or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path. // // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the // compiled file. JavaScript code in this file should be added after the last require_* statement. // // Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details // about supported directives. // //= require jquery //= require jquery_ujs //= require turbolinks //= require_tree .
这就是服务器日志的样子：
Started GET "/" for ::1 at 2016-09-02 09:08:19 -0500 ActiveRecord::SchemaMigration Load (1.5ms) SELECT "schema_migrations".* FROM "schema_migrations" User Load (1.7ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 2], ["LIMIT", 1]] Processing by ProfilesController#index as HTML Rendering profiles/index.html.erb within layouts/application Profile Load (1.6ms) SELECT "profiles".* FROM "profiles" Rendered profiles/index.html.erb within layouts/application (45.8ms) Completed 500 Internal Server Error in 367ms (ActiveRecord: 6.3ms) DEPRECATION WARNING: #original_exception is deprecated. Use #cause instead. (called from initialize at /.rvm/gems/ruby-2.3.1@myapp/gems/better_errors-2.1.1/lib/better_errors/raised_exception.rb:7) DEPRECATION WARNING: #original_exception is deprecated. Use #cause instead. (called from initialize at /.rvm/gems/ruby-2.3.1myapp/gems/better_errors-2.1.1/lib/better_errors/raised_exception.rb:8) Sprockets::ArgumentError - require_tree argument must be a directory: sprockets (3.7.0) lib/sprockets/directive_processor.rb:182:in `rescue in block in process_directives' sprockets (3.7.0) lib/sprockets/directive_processor.rb:179:in `block in process_directives' sprockets (3.7.0) lib/sprockets/directive_processor.rb:178:in `process_directives'
我没有使用任何类型的插件。 这是一个相当简单/香草的应用程序。 唯一的样式来自默认的scaffold.scss 。
可能是什么导致了这个？
我终于弄明白了。 因为我正在进行升级，RailsDiff没有告诉我，我错过了一些东西。
因此错误消息不正确，但是，我忘记做的是创建一个空目录。
在我的app/assets/javascripts/cable.js ，我有以下内容：
//= require_tree ./channels
但是，我忘了实际创建该文件夹。
所以要解决这个问题，我所要做的只是在app/assets/javascripts创建一个名为channels的空文件夹。 此外，因为git忽略空目录，在新创建的文件夹中，我还必须创建一个名为.keep的空文件。
所以，一旦我做了以下，一切都像一个魅力：
- 创建文件夹：
app/assets/javascripts/channels - 在该文件夹中创建空文件：
app/assets/javascripts/channels/.keep
现在一切都很完美。