我正在尝试通过Vue.li初始化vue.js项目，它向我显示以下错误：
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/4a/3e'
在许多其他类似消息中，例如：
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/37/5a'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/94/48'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/c0/e4'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/6b/83'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/92/77'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/d8/cf'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/81/71'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/b5/ad'
Unhandled rejection Error: EISDIR: illegal operation on a directory, open '/var/root/.npm/_cacache/content-v2/sha512/e8/79'
npm ERR! cb() never called!
npm ERR! This is an error with npm itself. Please report this error at:
npm ERR! <https://npm.community>
npm ERR! A complete log of this run can be found in:
npm ERR! /var/root/.npm/_logs/2019-02-15T16_32_21_678Z-debug.log
我尝试了许多解决方案，例如卸载并重新安装Vue.cli，清理缓存，并且还卸载了以前项目中的Angular cli。他们的节点似乎起作用。有什么解决方法的线索吗？