小编Cor*_*eze的帖子

我在过去几周内使用了npm，没有任何问题，但是突然间我一直收到此错误：

npm ERR! path J:\Work\Web_server\create_file\node_modules\depd
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall rename
npm ERR! enoent ENOENT: no such file or directory, rename 'J:\Work\Web_server\create_file\node_modules\depd' -> 'J:\Work\Web_server\create_file\node_modules\.depd.DELETE'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\crist\AppData\Roaming\npm-cache\_logs\2018-08-13T09_21_56_509Z-debug.log

这是package.json：

{
  "name": "create_file",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: …

我想查看列表有多长,但不使用该函数length.我写了这个程序,它不起作用.也许你可以告诉我为什么？谢谢!

let y = 0
main = do
  list (x:xs) = list (xs)
  y++

list :: [Integer] -> Integer
list [] = y