vue启动项目的报错：Failed to resolve loader: less-loader You may need to install it.

以上解决方法同样适当vue启动项目服务时出现：Failed to resolve loader: less-loader，You may need to install it时，用于sass-首先：npm install less-loader -Dloader，只需将两条口令中的less替换成sass即可。

其次在执行：cnpm install node-less --se-dev