今天需要用到 npm 下载一个依赖，突然发现 npm 无法使用，出现冲突

>npm ERR! Cannot read property 'match' of undefined
npm` ERR`!` A complete log of this run can be found in:
`npm` ERR`!`     C:`</span>Users</span>Administrator</span>AppData</span>Roaming</span>npm-cache</span>_logs</span>2020-04-18T06_38_41_399Z-debug.log

查看报错位置日志发现日志全部是 silly saveTree | | +-- has-ansi@2.0.0 这种类型的

>0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'i'
1 verbose cli ]
2 info using npm@6.14.4
3 info using node@v12.16.2
4 verbose npm-session d699d05f8d8b58a0
5 silly install runPreinstallTopLevelLifecycles
6 silly preinstall hexo-site@0.0.0
7 info lifecycle hexo-site@0.0.0~preinstall: hexo-site@0.0.0
8 silly install loadCurrentTree
9 silly install readLocalPackageData
10 timing stage:loadCurrentTree Completed in 29ms
17 silly saveTree |     | +-- esutils@2.0.3
17 silly saveTree |     | `-- to-fast-properties@2.0.0
17 silly saveTree |     `-- esutils@2.0.3
17 silly saveTree +-- @babel/runtime@7.7.7
17 silly saveTree | `-- regenerator-runtime@0.13.3
17 silly saveTree +-- babel-core@6.26.3
17 silly saveTree | +-- babel-code-frame@6.26.0
17 silly saveTree | | `-- chalk@1.1.3
17 silly saveTree | |   +-- ansi-styles@2.2.1
17 silly saveTree | |   +-- escape-string-regexp@1.0.5
17 silly saveTree | |   +-- has-ansi@2.0.0
17 silly saveTree | |   | `-- ansi-regex@2.1.1
17 silly saveTree | |   +-- strip-ansi@3.0.1
17 silly saveTree | |   `-- supports-color@2.0.0

可能是即将下载的依赖和现有的包内依赖出现版本冲突，知道了原因就好解决了

解决 {#解决}

• 在 hexo 博客内，根目录下会出现一个下载的所有依赖包版本文件package-lock.json，删掉这个文件即可

{
"name": "hexo-site",
"version": "0.0.0",
"lockfileVersion": 1,
"requires": true,
"dependencies": {
 "@babel/code-frame": {
   "version": "7.8.3",
   "resolved": "https://registry.npm.taobao.org/@babel/code-frame/download/@babel/code-frame-7.8.3.tgz?cache=0&sync_timestamp=1578953126105&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40babel%2Fcode-frame%2Fdownload%2F%40babel%2Fcode-frame-7.8.3.tgz",
   "integrity": "sha1-M+JZA9dIEYFTThLsCiXxa2/PQZ4=",
   "requires": {
     "@babel/highlight": "^7.8.3"
   }
 }

• 重新 npm i 就好了