下面列出的所有插件都是最新版本。less-loader:7.2.1 css-loader:5.0.1 file-loader:6.2.0 postcss-loader:4.1.0 extract-loader:5.1.0 autoprefixer:10.2.1
我的 postcss 配置:
module.exports = {
plugins: [require('autoprefixer')],
};
我的 webpack (5) 配置中有以下规则:
test: /\.less$/,
/* include: [
settings.PATHS.CSS_SOURCE,
...settings.PATHS.CSS_FEATURES_SOURCE,
], */
use: [
{
loader: 'file-loader',
options: cssOptions,
},
{
loader: 'extract-loader',
},
{
loader: 'css-loader',
options: {
importLoaders: 2,
sourceMap: process.env.npm_lifecycle_event.indexOf('watch') > -1,
url: false,
},
},
{
loader: 'postcss-loader',
options: {
postcssOptions: {
config: path.resolve(__dirname, '../postcss.config.js'),
},
},
},
{
loader: 'less-loader',
options: {
lessOptions: {
paths: [path.resolve(__dirname, 'node_modules')],
},
},
},
],
},
我正在使用 importLoaders: 2 因为我在 css-loader 的文档中看到,如果以前的加载器也对 @import 做了一些事情,这将是必要的吗?现在我收到以下错误:
UnhandledPromiseRejectionWarning: Error: The module created for a LoaderDependency must have an original source
at compilation.handleModuleCreation.err (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\dependencies\LoaderPlugin.js:79:16)
at buildModule.err (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\Compilation.js:1556:8)
at hooks.result.callAsync.hookError (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\util\AsyncQueue.js:281:5)
at Hook.eval [as callAsync] (eval at create (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)
at AsyncQueue._handleResult (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\util\AsyncQueue.js:254:21)
at _processor (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\util\AsyncQueue.js:237:11)
at _modulesCache.store.err (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\Compilation.js:1263:15)
at C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\HookWebpackError.js:69:3
at Hook.eval [as callAsync] (eval at create (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:15:1)
at Cache.store (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\webpack\lib\Cache.js:107:20)
当我删除 importLoaders 属性时,出现以下错误:
TypeError: Cannot read property 'sources' of undefined
at cssWithMappingToString (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\css-loader\dist\runtime\cssWithMappingToString.js:25:33)
at C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\css-loader\dist\runtime\api.js:14:21
at Array.map (<anonymous>)
at Array.toString (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\css-loader\dist\runtime\api.js:13:17)
at extractExports (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\extract-loader\lib\extractLoader.js:182:269)
at C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\extract-loader\lib\extractLoader.js:171:45
at Generator.next (<anonymous>)
at step (C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\babel-runtime\helpers\asyncToGenerator.js:17:30)
at C:\Projects\Carglass\carglass930-source\src\Projects\Platform\code\node_modules\babel-runtime\helpers\asyncToGenerator.js:28:13
我究竟做错了什么?这在我将 css-loader 升级到 v5.0.1 后开始发生