安装 angular/cli 崩溃，错误 404

Question

在我的计算机上安装 angular/cli 时我遇到了一个小问题。我已经安装了 Node.js 的最新稳定版本（当前是 v. 10.16.0 和 npm 6.9.0）。安装成功完成，没有任何问题。

安装后，我尝试在命令提示符下安装 angular/cli，但出现此错误。

npm ERR! code E400
npm ERR! 400 Bad Request - GET https://registry.npmjs.org/@angular%2fcli

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\h053z9rc\AppData\Roaming\npm-cache\_logs\2019-07-09T05_03_06_062Z-debug.log

在日志文件中是这些信息

0 info it worked if it ends with ok
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   'install',
1 verbose cli   '-g',
1 verbose cli   '@angular/cli' ]
2 info using npm@6.9.0
3 info using node@v10.16.0
4 verbose npm-session 336717238679caae
5 silly install loadCurrentTree
6 silly install readGlobalPackageData
7 http fetch GET 400 https://registry.npmjs.org/@angular%2fcli 141ms
8 silly fetchPackageMetaData error for @angular/cli@latest 400 Bad Request - GET https://registry.npmjs.org/@angular%2fcli
9 timing stage:rollbackFailedOptional Completed in 0ms
10 timing stage:runTopLevelLifecycles Completed in 177ms
11 verbose stack Error: 400 Bad Request - GET https://registry.npmjs.org/@angular%2fcli
11 verbose stack     at res.buffer.catch.then.body (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-fetch\check-response.js:104:15)
11 verbose stack     at process._tickCallback (internal/process/next_tick.js:68:7)
12 verbose statusCode 400
13 verbose pkgid @angular/cli@latest
14 verbose cwd C:\Windows\System32
15 verbose Windows_NT 10.0.15063
16 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "@angular/cli"
17 verbose node v10.16.0
18 verbose npm  v6.9.0
19 error code E400
20 error 400 Bad Request - GET https://registry.npmjs.org/@angular%2fcli
21 verbose exit [ 1, true ]

我尝试重新安装 node.js，但没有帮助。

Answer 1

尝试以下方法：

选项1

1. 以管理员身份打开命令提示符
2. npm uninstall -g @angular/cli
3. npm cache clean
4. npm config set strict-ssl false
5. npm install -g @angular/cli

或者 ：

选项2

1. 以管理员身份打开命令提示符
2. npm uninstall -g @angular/cli
3. npm cache clean
4. npm config set proxy="http://proxy.example.com:8080"
5. npm config set https-proxy="http://proxy.example.com:8080"
6. npm config set strict-ssl false
7. npm install -g @angular/cli

如果您收到错误reason: write EPROTO尝试，

1. npm config set proxy="http://proxy.example.com:8080"
2. npm config set https-proxy="http://proxy.example.com:8080"

遵循选项 2

如果上述所有方法均失败，请尝试安装最新稳定版本的 Node 和 npm。