安装npm install --global vue-cli出现问题，使用npm 安装 @vue/cli时遇到的错误

安装npm install --global vue-cli出现问题npm WARN deprecated har-validator@5.1.5: this library is no longer supportednpm WARN deprecated uuid@3.4.0: Please upgrade to version 7 or higher. Older versions may

小柒铛铛

8048人浏览 · 2021-11-13 21:14:51

小柒铛铛 · 2021-11-13 21:14:51 发布

安装npm install --global vue-cli出现问题

npm WARN deprecated har-validator@5.1.5: this library is no longer supported
npm WARN deprecated uuid@3.4.0: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details.
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated coffee-script@1.12.7: CoffeeScript on NPM has moved to "coffeescript" (no hyphen)
npm ERR! code EEXIST
npm ERR! path C:\Users\lilin\AppData\Roaming\npm\vue.cmd
npm ERR! EEXIST: file already exists
npm ERR! File exists: C:\Users\lilin\AppData\Roaming\npm\vue.cmd
npm ERR! Remove the existing file and try again, or run npm
npm ERR! with --force to overwrite files recklessly.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\lilin\AppData\Local\npm-cache\_logs\2021-11-13T12_55_58_880Z-debug.log

解决办法：

进入

删除这3个vue

然后重新运行npm install --global vue-cli

Vue

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vue 表单验证

1、6位小写字母和数字必须包含两个字母rules: [{ required: true, message: "XXX不能为空", trigger: "blur" },{ max: 6, message: "最大长度为6位字符", trigger: "blur" },{pattern: /^(?=(?:[^a-z]*[a-z]){2})[a-z0-9]{6,6}$/, //不连续的两位字母// /^