我正在尝试使用一些构建视图和组件的简单方法来构建React应用程序。当我运行我的webpack dev服务器时,我得到以下错误输出:
Module parse failed: /Directory/To/router.js Unexpected token (26:2)
You may need an appropriate loader to handle this file type.
它抱怨的是我第一次定义路由器处理程序时...
<Route handler={App}>
我的完整router.js设置如下:
// Load css first thing. It gets injected in the <head> in a <style> element by
// the Webpack style-loader.
import css from './src/styles/main.sass';
import React from 'react';
import { render } from 'react-dom';
// Assign React to Window so the Chrome React Dev Tools will work.
window.React = React;
import { Router } from 'react-router';
Route = Router.Route;
// Require route components.
import { App } from './containers/App';
import { Home } from './containers/Home';
import { StyleGuide } from './containers/StyleGuide';
import { Uploader } from './containers/Uploader';
const routes = (
<Route handler={App}>
<Route name="Home" handler={Home} path="/" />
<Route name="StyleGuide" handler={StyleGuide} path="/styleguide" />
<Route name="Uploader" handler={Uploader} path="/uploader" />
</Route>
)
Router.run(routes, function(Handler) {
return ReactDOM.render(<Handler/>, document.getElementById('app'));
});
在我的.babelrc
文件中,我的预设定义为react
和es2015
我的开发webpack看起来像这样:
var path = require('path');
var webpack = require('webpack');
module.exports = {
entry: [
'webpack-dev-server/client?http://0.0.0.0:8080',
'webpack/hot/only-dev-server',
'./src/router'
],
devtool: 'eval',
debug: true,
output: {
path: path.join(__dirname, 'public'),
filename: 'bundle.js'
},
resolveLoader: {
modulesDirectories: ['node_modules']
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
],
resolve: {
extensions: ['', '.js']
},
module: {
loaders: [
// js
{
test: /\.js$/,
loaders: ['babel'],
include: path.join(__dirname, 'public')
},
// CSS
{
test: /\.sass$/,
include: path.join(__dirname, 'public'),
loader: 'style-loader!css-loader!sass-loader'
}
]
}
};
我已经尝试过研究这个问题了。我找不到这个特定实例的任何解决方案。我很想知道为什么会这样。
我设法通过将目录名更改为我的实际源目录而不是public/
来解决我的问题。但是在纠正了我的错误之后,我偶然发现了另外两个与我的组件有关的错误?
我现在在浏览器中收到两个错误:
Warning: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components).
TypeError: _reactRouter.Router.run is not a function. (In '_reactRouter.Router.run', '_reactRouter.Router.run' is undefined)
我发现这通常是由于没有正确导入/导出某些内容造成的。它来自我的router.js
或我的组件,它们的共享结构如下:
import React from 'react';
import { Link } from 'react-router';
const Uploader = React.createClass({
//displayName: 'Uploader',
render() {
return (
<div>
<h1>Uploader</h1>
</div>
)
}
});
export default Uploader;
答案 0 :(得分:0)
您正在导出Uploader作为默认值,但将其导入为命名导出:
export default Uploader;
import { Uploader } from './containers/Uploader';
// instead do
import Uploader from './containers/Uploader';
您的路由器配置有点奇怪。您使用的是什么版本的react-router
?通常,您可以将<Route>
配置包装到<Router>
中。请参阅docs。