rails 5.1 Webpack-dev服务器启动错误

Question

ruby version - 2.4.2

rails - 5.1

rails new my_app --webpack=react 

当我尝试启动服务器foreman start -f Procfile.dev或只是./bin/webpack-dev-server

我得到以下错误,无法找到原因.任何帮助表示赞赏.

    /Users/shani/Wspace/myapp/node_modules/webpack-dev-server/bin/webpack-dev-server.js:405
    throw e;
    ^

TypeError: Cannot read property 'compile' of undefined
    at addCompilerHooks (/Users/shani/Wspace/myapp/node_modules/webpack-dev-server/lib/Server.js:71:16)
    at new Server (/Users/shani/Wspace/myapp/node_modules/webpack-dev-server/lib/Server.js:81:5)
    at startDevServer (/Users/shani/Wspace/myapp/node_modules/webpack-dev-server/bin/webpack-dev-server.js:398:14)
    at processOptions (/Users/shani/Wspace/myapp/node_modules/webpack-dev-server/bin/webpack-dev-server.js:361:5)
    at Object.<anonymous> (/Users/shani/Wspace/myapp/node_modules/webpack-dev-server/bin/webpack-dev-server.js:504:1)
    at Module._compile (module.js:662:30)
    at Object.Module._extensions..js (module.js:673:10)
    at Module.load (module.js:575:32)
    at tryModuleLoad (module.js:515:12)
    at Function.Module._load (module.js:507:3)

Answer 1

我在 webpack-dev-server v3.1.0 上遇到了完全相同的异常。我降级到 v2.11.1，一切都很好。

https://github.com/rails/webpacker/issues/1303#issuecomment-369090507