less-loader 报错 TypeError: this.getOptions is not a function

解决less-loader 报错 TypeError: this.getOptions is not a function

问题

less-loader 报错 TypeError: this.getOptions is not a function at Object.lessLoader ：

Failed to compile.

./src/views/Login.vuevuetype=styleindex=0id=26084dc2lang=lessscoped=true (./node_modules/css-loader/dist/cjs.jsref--10-oneOf-1-1!./node_modules/vue-loader/lib/loaders/stylePostLoader.js!./node_modules/postcss-loader/srcref--10-oneOf-1-2!./node_modules/less-loader/dist/cjs.jsref--10-oneOf-1-3!./node_modules/cache-loader/dist/cjs.jsref--0-0!./node_modules/vue-loader/libvue-loader-options!./src/views/Login.vuevuetype=styleindex=0id=26084dc2lang=lessscoped=true)
Module build failed (from ./node_modules/less-loader/dist/cjs.js):
TypeError: this.getOptions is not a function
    at Object.lessLoader (F:\VS Code\Vue\supply\node_modules\less-loader\dist\index.js:21:24)

原因

因为less-loader版本太高问题，webpack和less-loader版本兼容问题导致的，需要降低版本。

解决

1.先卸载掉原先的版本
2.通过命令行的方式安装指定的版本（注意：在你当前项目里安装即可，不用全局安装，所以加-D即可）

npm uninstall less-loader

# npm install [email protected]  [email protected] -s
npm install [email protected]