终端：在Windows 10上的Ubuntu上进行bash Rails：4.2.8 npm：5.5.1 node：v8.9.1 纱线：1.3.2
在rake webpacker:install之后，控制台显示如下。虽然它在最后显示“已成功安装”，但日志中会出现一些错误。这是正常的吗？
create config/webpacker.yml
Copying webpack core config and loaders
create config/webpack
create config/webpack/development.js
create config/webpack/environment.js
create config/webpack/production.js
create config/webpack/test.js
Copying .postcssrc.yml to app root directory
create .postcssrc.yml
Copying .babelrc to app root directory
create .babelrc
Creating javascript app source directory
exist app/javascript
identical app/javascript/packs/application.js
Installing binstubs
run bundle binstubs webpacker from "."
append .gitignore
Installing all JavaScript dependencies
run yarn add @rails/webpacker coffeescript@1.12.7 from "."
yarn add v1.3.2
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.3: The platform "linux" is incompatible with this module.
info "fsevents@1.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "@rails/webpacker > postcss-cssnext@3.0.2" has unmet peer dependency "caniuse-lite@^1.0.30000697".
error An unexpected error occurred: "EINVAL: invalid argument, lstat '/mnt/d/Github/cfegame/node_modules/babel-core/package-lock.json'".
info If you think this is a bug, please open a bug report with the information provided in "/mnt/d/Github/cfegame/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
Installing dev server for live reloading
run yarn add --dev webpack-dev-server from "."
yarn add v1.3.2
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.3: The platform "linux" is incompatible with this module.
info "fsevents@1.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "webpack-dev-server > webpack-dev-middleware@1.12.1" has unmet peer dependency "webpack@^1.0.0 || ^2.0.0 || ^3.0.0".
warning " > webpack-dev-server@2.9.4" has unmet peer dependency "webpack@^2.2.0 || ^3.0.0".
error An unexpected error occurred: "EINVAL: invalid argument, lstat '/mnt/d/Github/cfegame/node_modules/camelcase-keys/node_modules/camelcase/license'".
info If you think this is a bug, please open a bug report with the information provided in "/mnt/d/Github/cfegame/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
Webpacker successfully installed
当我“成功安装”webpacker并且我想检查webpack-dev-server是否正常工作时，控制台显示如下。这是否意味着我没有正确安装webpacker？
(home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/dev_server_runner.rb:47:in `exec': No such file or directory - (project_dir)/node_modules/.bin/webpack-dev-server (Errno::ENOENT)
from (home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/dev_server_runner.rb:47:in `block in execute_cmd'
from (home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/dev_server_runner.rb:46:in `chdir'
from (home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/dev_server_runner.rb:46:in `execute_cmd'
from (home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/dev_server_runner.rb:11:in `run'
from (home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/runner.rb:6:in `run'
from (home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/exe/webpack-dev-server:8:in `<top (required)>'
from bin/webpack-dev-server:17:in `load'
from bin/webpack-dev-server:17:in `<main>'
答案 0 :(得分：1)
基本上yarn正在管理你的包。他正在尝试使用webpack-dev-server-安装yarn add --dev webpack-dev-server from "."，但它失败了。这是关于yarn add command
npm是使用yarn安装软件包的替代方法，因此在服务器终端中运行
npm install webpack-dev-server
它应该安装依赖项
当我成功安装＆＃34; webpacker我想检查webpack-dev-server是否正常工作，控制台显示如下。这是否意味着我没有正确安装webpacker？
(home_dir)/.rvm/gems/ruby-2.3.3/gems/webpacker-3.0.2/lib/webpacker/dev_server_runner.rb:47:in `exec': No such file or directory - (project_dir)/node_modules/.bin/webpack-dev-server (Errno::ENOENT)
你要么没有安装它，要么你正在寻找错误的路径，也许gem已经安装在.rvm/gems/ruby-2.3.3somethingelse
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