尝试在我的react组件中导入以下内容时出现错误:
import FontIconPicker from '@fonticonpicker/react-fonticonpicker';
import '@fonticonpicker/react-fonticonpicker/dist/fonticonpicker.base-theme.react.css';
我正在使用此模块:https://fonticonpicker.github.io/react-fonticonpicker/
我收到此错误:
该错误可以用我在github上的代码重现:https://github.com/gregbia/my-app
使用
npm install和npm start，将显示错误。我的webpack看起来像这样:
/**
* Webpack Configuration
*
* Working of a Webpack can be very simple or complex. This is an intenally simple
* build configuration.
*
* Webpack basics — If you are new the Webpack here's all you need to know:
* 1. Webpack is a module bundler. It bundles different JS modules together.
* 2. It needs and entry point and an ouput to process file(s) and bundle them.
* 3. By default it only understands common JavaScript but you can make it
* understand other formats by way of adding a Webpack loader.
* 4. In the file below you will find an entry point, an ouput, and a babel-loader
* that tests all .js files excluding the ones in node_modules to process the
* ESNext and make it compatible with older browsers i.e. it converts the
* ESNext (new standards of JavaScript) into old JavaScript through a loader
* by Babel.
*
* TODO: Instructions.
*
* @since 1.0.0
*/
const paths = require( './paths' );
const autoprefixer = require( 'autoprefixer' );
const ExtractTextPlugin = require( 'extract-text-webpack-plugin' );
// Extract style.css for both editor and frontend styles.
const blocksCSSPlugin = new ExtractTextPlugin( {
filename: './dist/blocks.style.build.css',
} );
// Extract editor.css for editor styles.
const editBlocksCSSPlugin = new ExtractTextPlugin( {
filename: './dist/blocks.editor.build.css',
} );
// Configuration for the ExtractTextPlugin — DRY rule.
const extractConfig = {
use: [
// "postcss" loader applies autoprefixer to our CSS.
{ loader: 'raw-loader' },
{
loader: 'postcss-loader',
options: {
ident: 'postcss',
plugins: [
autoprefixer( {
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
} ),
],
},
},
// "sass" loader converts SCSS to CSS.
{
loader: 'sass-loader',
options: {
// Add common CSS file for variables and mixins.
data: '@import "./src/common.scss";\n',
outputStyle: 'nested',
},
},
],
};
// Export configuration.
module.exports = {
entry: {
'./dist/blocks.build': paths.pluginBlocksJs, // 'name' : 'path/file.ext'.
},
output: {
// Add /* filename */ comments to generated require()s in the output.
pathinfo: true,
// The dist folder.
path: paths.pluginDist,
filename: '[name].js', // [name] = './dist/blocks.build' as defined above.
},
// You may want 'eval' instead if you prefer to see the compiled output in DevTools.
devtool: 'cheap-eval-source-map',
module: {
rules: [
{
test: /\.(js|jsx|mjs)$/,
exclude: /(node_modules|bower_components)/,
use: {
loader: 'babel-loader',
options: {
// @remove-on-eject-begin
babelrc: false,
presets: [ require.resolve( 'babel-preset-cgb' ) ],
// @remove-on-eject-end
// This is a feature of `babel-loader` for webpack (not Babel itself).
// It enables caching results in ./node_modules/.cache/babel-loader/
// directory for faster rebuilds.
cacheDirectory: true,
},
},
},
{
test: /style\.s?css$/,
exclude: /(node_modules|bower_components)/,
use: blocksCSSPlugin.extract( extractConfig ),
},
{
test: /editor\.s?css$/,
exclude: /(node_modules|bower_components)/,
use: editBlocksCSSPlugin.extract( extractConfig ),
},
],
},
// Add plugins.
plugins: [ blocksCSSPlugin, editBlocksCSSPlugin ],
stats: 'minimal',
// stats: 'errors-only',
// Add externals.
externals: {
react: 'React',
'react-dom': 'ReactDOM',
ga: 'ga', // Old Google Analytics.
gtag: 'gtag', // New Google Analytics.
jquery: 'jQuery', // import $ from 'jquery' // Use the WordPress version.
},
};
最佳答案
实际上，我很惊讶您在SCSS旁边使用了PostCSS webpack配置，因为有了little configuration，您可以预处理CSS es，然后通过SCSS语法将它们后处理为压缩版本。我在this link中设置了一个配置。我知道这不是您的主要问题，但我认为您的项目配置尚未优化。
上面的webpack config链接将帮助您改善配置，并且可以看到字体的webpack config。反正...
对于确切的错误，您应该像下面这样在webpack上修复字体配置:
{
test: /\.(woff|woff2|eot|ttf|svg)$/,
exclude: /node_modules/,
loader: 'file-loader',
options: {
limit: 1024,
name: '[name].[ext]',
publicPath: 'dist/assets/',
outputPath: 'dist/assets/'
}
},
在the repo上工作后更新:
我将
webpack.config.dev.js文件编写如下:const paths = require('./paths');
const externals = require('./externals');
const autoprefixer = require('autoprefixer');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
// Extract style.css for both editor and frontend styles.
const blocksCSSPlugin = new ExtractTextPlugin({
filename: './dist/blocks.style.build.css',
});
// Extract editor.css for editor styles.
const editBlocksCSSPlugin = new ExtractTextPlugin({
filename: './dist/blocks.editor.build.css',
});
// Configuration for the ExtractTextPlugin — DRY rule.
const extractConfig = {
fallback: 'style-loader',
use: [
// "postcss" loader applies autoprefixer to our CSS.
{loader: 'css-loader'},
{
loader: 'postcss-loader',
options: {
ident: 'postcss',
plugins: [
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
},
},
// "sass" loader converts SCSS to CSS.
{
loader: 'sass-loader',
options: {
// Add common CSS file for variables and mixins.
data: '@import "./src/common.scss";\n',
outputStyle: 'nested',
},
},
],
};
// Export configuration.
module.exports = {
entry: {
'./dist/blocks.build': paths.pluginBlocksJs, // 'name' : 'path/file.ext'.
},
output: {
// Add /* filename */ comments to generated require()s in the output.
pathinfo: true,
// The dist folder.
path: paths.pluginDist,
filename: '[name].js', // [name] = './dist/blocks.build' as defined above.
},
// You may want 'eval' instead if you prefer to see the compiled output in DevTools.
devtool: 'cheap-eval-source-map',
module: {
rules: [
{
test: /\.(js|jsx|mjs)$/,
exclude: /(node_modules|bower_components)/,
use: {
loader: 'babel-loader',
options: {
// @remove-on-eject-begin
babelrc: false,
presets: [require.resolve('babel-preset-cgb')],
// @remove-on-eject-end
// This is a feature of `babel-loader` for webpack (not Babel itself).
// It enables caching results in ./node_modules/.cache/babel-loader/
// directory for faster rebuilds.
cacheDirectory: true,
},
},
},
{
test: /style\.s?css$/,
exclude: /(node_modules|bower_components)/,
use: blocksCSSPlugin.extract(extractConfig),
},
{
test: /editor\.s?css$/,
exclude: /(node_modules|bower_components)/,
use: editBlocksCSSPlugin.extract(extractConfig),
},
{
test: /\.css$/,
include: /(node_modules\/@fonticonpicker\/react-fonticonpicker\/dist)/,
loaders: ['style-loader', 'css-loader']
},
{
test: /\.(woff|woff2|eot|ttf|svg)$/,
include: /(node_modules\/@fonticonpicker\/react-fonticonpicker\/dist)/,
loader: 'file-loader',
options: {
limit: 1024,
name: '[name].[ext]',
publicPath: 'dist/assets/',
outputPath: 'dist/assets/'
}
}
],
},
// Add plugins.
plugins: [blocksCSSPlugin, editBlocksCSSPlugin],
stats: 'minimal',
// stats: 'errors-only',
// Add externals.
externals: externals,
};
还要安装
css-loader和file-loader。npm install file-loader css-loader
提示:似乎字体在Webpack配置中需要有一个
outputPath。关于reactjs - React Module解析失败: Unexpected character '@' ，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/53864520/