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在新版nodejs已经集成了npm,所以npm也都安装好了。可以通过输入下面命令来测试是否成功安装
node -v
npm -v
如果安装成功,都会出现版本号
用npm -v测试,报错:
node:internal/modules/cjs/loader:936 throw err; ^ Error: Cannot find module 'D:\lcb\software\nodejs\node_modules\npm\bin\npm-cli.js' at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15) at Function.Module._load (node:internal/modules/cjs/loader:778:27) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) at node:internal/main/run_main_module:17:47 { code: 'MODULE_NOT_FOUND', requireStack: [] } node:internal/modules/cjs/loader:936 throw err; ^ Error: Cannot find module 'D:\lcb\software\nodejs\node_modules\npm\bin\npm-cli.js' [90m at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)[39m [90m at Function.Module._load (node:internal/modules/cjs/loader:778:27)[39m [90m at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)[39m [90m at node:internal/main/run_main_module:17:47[39m { code: [32m'MODULE_NOT_FOUND'[39m, requireStack: [] }
解决办法:
1.卸载重装
2.以管理员方式运行
配好npm之后,在项目中报错,
输入安装依赖命令
npm install
报错如下:
npm ERR! code EPERM npm ERR! syscall open npm ERR! path C:\Program Files\nodejs\node_cache\_cacache\tmp\cc62b2b3 npm ERR! errno EPERM npm ERR! FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/@riophae%2fvue-treeselect: EPERM: operation not permitted, open 'C:\Program Files\nodejs\node_ca che\_cacache\tmp\cc62b2b3' npm ERR! at C:\Program Files\nodejs\node_modules\npm\node_modules\minipass-fetch\lib\body.js:162:15 npm ERR! at async Arborist.[nodeFromEdge] (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:1061:19) npm ERR! at async Arborist.[buildDepStep] (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:930:11) npm ERR! at async Arborist.buildIdealTree (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:216:7) npm ERR! at async Promise.all (index 1) npm ERR! at async Arborist.reify (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\reify.js:149:5) npm ERR! at async Install.install (C:\Program Files\nodejs\node_modules\npm\lib\install.js:170:5) npm ERR! FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/@riophae%2fvue-treeselect: EPERM: operation not permitted, open 'C:\Program Files\nodejs\node_c ache\_cacache\tmp\cc62b2b3' npm ERR! at C:\Program Files\nodejs\node_modules\npm\node_modules\minipass-fetch\lib\body.js:162:15 npm ERR! at async Arborist.[nodeFromEdge] (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:1061:19) npm ERR! at async Arborist.[buildDepStep] (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:930:11) npm ERR! at async Arborist.buildIdealTree (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:216:7) npm ERR! at async Promise.all (index 1) npm ERR! at async Arborist.reify (C:\Program Files\nodejs\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\reify.js:149:5) npm ERR! at async Install.install (C:\Program Files\nodejs\node_modules\npm\lib\install.js:170:5) { npm ERR! code: 'EPERM', npm ERR! errno: 'EPERM', npm ERR! syscall: 'open', npm ERR! path: 'C:\\Program Files\\nodejs\\node_cache\\_cacache\\tmp\\cc62b2b3', npm ERR! type: 'system', npm ERR! requiredBy: '.' npm ERR! } npm ERR! npm ERR! The operation was rejected by your operating system. npm ERR! It's possible that the file was already in use (by a text editor or antivirus), npm ERR! or that you lack permissions to access it. npm ERR! npm ERR! If you believe this might be a permissions issue, please double-check the npm ERR! permissions of the file and its containing directories, or try running npm ERR! the command again as root/Administrator.
解决办法:
删除npmrc文件,需要注意的是:不是nodejs安装目录npm模块下的那个npmrc文件,而是在C:\Users{账户}\下的.npmrc文件.
继续安装依赖:
npm install
出现下面结果:
npm WARN ERESOLVE overriding peer dependency npm WARN deprecated querystring@0.2.0: The querystring API is considered Legacy. new code should use the URLSearchParams API instead. npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated npm WARN deprecated microargs@1.1.2: This project has been renamed to @pawelgalazka/cli-args. Install using @pawelgalazka/cli-args instead 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.de v/blog/math-random for details. npm WARN deprecated har-validator@5.1.5: this library is no longer supported npm WARN deprecated microcli@1.3.3: This project has been renamed to @pawelgalazka/cli . Install using @pawelgalazka/cli instead npm WARN deprecated svgo@1.3.2: This SVGO version is no longer supported. Upgrade to v2.x.x. npm WARN deprecated @hapi/topo@3.1.6: This version has been deprecated and is no longer supported or maintained npm WARN deprecated @hapi/hoek@8.5.1: This version has been deprecated and is no longer supported or maintained npm WARN deprecated @hapi/bourne@1.3.2: This version has been deprecated and is no longer supported or maintained npm WARN deprecated @hapi/address@2.1.4: Moved to 'npm install @sideway/address' npm WARN deprecated @hapi/joi@15.1.1: Switch to 'npm install joi' npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142 npm WARN deprecated runjs@4.4.2: This project has been renamed to 'tasksfile'. Install using 'npm install tasksfile' instead. npm WARN deprecated highlight.js@9.18.5: Support has ended for 9.x series. Upgrade to @latest npm WARN deprecated babel-eslint@10.1.0: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates. npm WARN deprecated chokidar@2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies. npm WARN deprecated core-js@2.6.12: core-js@<3.4 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js. npm WARN deprecated chokidar@2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies. npm WARN deprecated html-webpack-plugin@3.2.0: 3.x is no longer supported npm WARN deprecated eslint-loader@2.2.1: This loader has been deprecated. Please use eslint-webpack-plugin npm WARN deprecated html-webpack-plugin@3.2.0: 3.x is no longer supported added 1568 packages, and audited 1569 packages in 3m 105 packages are looking for funding run `npm fund` for details 37 vulnerabilities (23 moderate, 11 high, 3 critical) To address issues that do not require attention, run: npm audit fix To address all issues possible (including breaking changes), run: npm audit fix --force Some issues need review, and may require choosing a different dependency. Run `npm audit` for details. npm notice npm notice New minor version of npm available! 8.1.2 -> 8.3.0 npm notice Changelog: https://github.com/npm/cli/releases/tag/v8.3.0 npm notice Run npm install -g npm@8.3.0 to update! npm notice
原因:默认的安装源是国外网站,国内访问不了无法获取依赖包信息。
解决办法:添加
npm config set registry http://registry.npm.taobao.org/
其他常见命令:
# 查看自己的安装源
npm config get registry
# 更换npm源为国内淘宝镜像
npm config set registry http://registry.npm.taobao.org/
# 或者更换为国内npm官方镜像
npm config set registry http://registry.cnpmjs.org/
# 还原npm源
npm config set registry https://registry.npmjs.org/
继续执行:
npm install
结果如下:
up to date in 2s
105 packages are looking for funding
run `npm fund` for details
即安装完成。
npm启动项目命令
npm run dev
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