这是我的webpack配置文件
var path = require('path');
var MDC_DIR = path.resolve(__dirname, 'node_modules', '@material');
module.exports = {
entry: "./index.js",
output: {
path: __dirname,
filename: "bundle.js"
},
module: {
loaders: [
{
test: /.js$/,
loader: "babel-loader",
},
{
test: /.scss$/,
loader: "sass-loader!style-loader!css-loader",
include: [
MDC_DIR
],
}
],
}
};
这是我的index.js
文件
import * as mdc from 'material-components-web';
require('material-components-web/material-components-web.scss');
当我运行WebPack时,它会引发以下错误:
ERROR in ./~/material-components-web/material-components-web.scss
Module parse failed: /Users/Me/project/mdc-babel-attempt/node_modules/material-components-web/material-components-web.scss Unexpected character '@' (17:0)
You may need an appropriate loader to handle this file type.
| //
|
| @import "@material/animation/mdc-animation";
| @import "@material/button/mdc-button";
| @import "@material/card/mdc-card";
@ ./index.js 9:0-63
这让我认为它不是通过装载机。
我什至尝试过没有运气的require('sass-loader!style-loader!css-loader!material-components-web/material-components-web.scss');
:
ERROR in ./~/sass-loader/lib/loader.js!./~/style-loader!./~/css-loader!./~/material-components-web/material-components-web.scss
Module build failed:
//
^
Invalid CSS after "...load the styles": expected 1 selector or at-rule, was "var content = requi"
in /Users/Me/project/mdc-babel-attempt/node_modules/material-components-web/material-components-web.scss (line 1, column 1)
@ ./index.js 9:0-99
现在尝试这样做一个星期,请提供帮助。预先感谢。
您在规则中包含的MDC_DIR
不匹配实际模块。该模块是material-components-web
(就像您导入的一样,如错误所示(,但是您仅适用于@material
的规则。您可以完全删除include
选项,因为您始终需要处理SASS文件才能与WebPack一起使用。
另一个问题是您的加载程序订单是错误的。在您的情况下,装载机以相反的顺序(从右到左(施加:
css-loader -> style-loader -> sass-loader
您绝对希望在css-loader
之前应用sass-loader
,因为它会将SASS转换为CSS,否则它将在任何无效CSS的SASS语法上出错。即使您仅使用CSS语法(没有额外的SASS功能(,您也会出现错误,因为style-loader
将CSS转换为JavaScript,并且将其传递给sass-loader
。sass-loader
期望SASS和JavaScript不是有效的SASS语法,因此会丢弃错误。
您的规则应为:
{
test: /.scss$/,
loader: "style-loader!css-loader!sass-loader",
}
或使用NOTER WebPack 2语法:
{
test: /.scss$/,
use: ["style-loader", "css-loader", "sass-loader"],
}