vue3引入less

1.安装less、less-loader

npm i less-loader less --save-dev

2.安装style-resources-loader

npm i style-resources-loader --save-dev

3.安装vue-cli-plugin-style-resources-loader

npm i vue-cli-plugin-style-resources-loader --save-dev

4.配置vue.config.js

const path = require('path');
module.exports = {
  transpileDependencies: [
    'vuetify'
  ],
  pluginOptions: {
    "style-resources-loader": {
        preProcessor: "less",
        patterns: [
           // 存放less变量文件的路径
            path.resolve(__dirname, "./src/assets/less/parameter.less")
        ]
    }
},
css: {
    loaderOptions: {
        less: {
            lessOptions: {
                modifyVars: {
                    'primary-color': '#ec6800'
                },
                javascriptEnabled: true,
            },
        },
    },
}
}

注：如果安装以上插件，运行报错时：

Syntax Error: TypeError: this.getOptions is not a function

说明less版本太高了，卸载重装7.x版本即可

// 卸载
npm uninstall --save less-loader
// 安装
npm install -D [email protected]