怪异！在.vue文件中请求(‘输入笔’)失败

Question

我尝试在test.vue文件中使用手写笔

let stylus = require('stylus')
console.log(stylus)

但是失败了。

This dependency was not found:
* fs in ./~/.0.54.5@stylus/lib/utils.js, ./~/.0.54.5@stylus/lib/middleware.js and 12 others
To install it, you can run: npm install --save fs
This relative module was not found:
* ./lib-cov/stylus in ./~/.0.54.5@stylus/index.js

我触摸了一个新的test.js文件，并要求(‘手写笔’)在它，它是好的。太棒了。

"vue": "^2.3.3",
"stylus": "^0.54.5",

任何帮助都将不胜感激，谢谢。