Webpack少装载机javascriptEnabled错误

Question

当我试图将我的less-loader设计库加载到Webpack的前端时，当我从6.0.0版本转移到6.1.0版本时，我收到了这个错误。我想知道是否还有其他人有这个问题并解决了这个问题(我在下面回答了)。

下面是更新之前的较少编译配置：

module: { rules: [{
    test: /\.less$/,
    use: [
        { loader: "style-loader" },
        { loader: "css-loader" },
        {
            loader: "less-loader",
            options: {
                javascriptEnabled: true,
            }
        }
    ]
}]}

ERROR in ./node_modules/.pnpm/registry.npmjs.org/antd/4.2.0_react-dom@16.13.1+react@16.13.1/node_modules/antd/dist/antd.less (./node_modules/.pnpm/registry.npmjs.org/css-loader/3.5.3_webpack@4.43.0/node_modules/css-loader/dist/cjs.js!./node_modules/.pnpm/registry.npmjs.org/less-loader/6.1.0_webpack@4.43.0/node_modules/less-loader/dist/cjs.js??ref--6-2!./node_modules/.pnpm/registry.npmjs.org/antd/4.2.0_react-dom@16.13.1+react@16.13.1/node_modules/antd/dist/antd.less)
Module build failed (from ./node_modules/.pnpm/registry.npmjs.org/less-loader/6.1.0_webpack@4.43.0/node_modules/less-loader/dist/cjs.js):
ValidationError: Invalid options object. Less Loader has been initialized using an options object that does not match the API schema.
 - options has an unknown property 'javascriptEnabled'. These properties are valid:
   object { lessOptions?, prependData?, appendData?, sourceMap?, implementation? }
    at validate (/home/<path>/react-web/node_modules/.pnpm/registry.npmjs.org/schema-utils/2.6.6/node_modules/schema-utils/dist/validate.js:88:11)
    at Object.lessLoader (/home/<path>/react-web/node_modules/.pnpm/registry.npmjs.org/less-loader/6.1.0_webpack@4.43.0/node_modules/less-loader/dist/index.js:22:28)
 @ ./node_modules/.pnpm/registry.npmjs.org/antd/4.2.0_react-dom@16.13.1+react@16.13.1/node_modules/antd/dist/antd.less 2:26-228
 @ ./src/index.tsx
 @ multi ./src/index.tsx

Answer 1

在“精简加载器”版本6.1.0^中，他们对加载器进行了突破性的更改，如果您使用类似于Ant (或其他更小的和JS加载器)之类的内容，通常会将javascriptEnabled: true标志添加到Webpack配置中的"options“对象中。

在版本6.1.0^中，对于较少的加载程序，这是要放置在options配置下的lessOptions对象中的更改。下面是我使用的解决方案，它适用于我的Webpack配置包。

module: { rules: [{
    test: /\.less$/,
    use: [
        { loader: "style-loader" },
        { loader: "css-loader" },
        {
            loader: "less-loader",
            options: {
                lessOptions: {
                    javascriptEnabled: true,
                }
            }
        }
    ]
}]}

注意，javascriptEnabled标志不是在顶级options对象下，而是在lessOptions子对象下。这是less-loader版本6.1.0^的最新更新标准。