无法安装“@angular/cli”

unable to install "@angular/cli"

我正在尝试使用 npm install -g @angular/cli.
安装@angular/cli 但是这个尝试提供了一些错误信息。

我的节点和 npm 版本如下所述,

C:\WINDOWS\system32>node -v  
v 12.4.0

C:\WINDOWS\system32>npm -v  
'CALL "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" prefix -g is not recognized as an internal or external command,
operable program or batch file.
6.9.0

我正在使用 Windows10 操作系统

当我尝试安装 angular cli 时,我收到以下错误消息

C:\WINDOWS\system32>npm install -g @angular/cli
'CALL "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" prefix -g' is not recognized as an internal or external command,
operable program or batch file.
C:\Users\me\AppData\Roaming\npm\ng -> C:\Users\me\AppData\Roaming\npm\node_modules\@angular\cli\bin\ng

> @angular/cli@8.0.2 postinstall C:\Users\me\AppData\Roaming\npm\node_modules\@angular\cli
> node ./bin/postinstall/script.js

npm ERR! file C:\WINDOWS\system32\cmd.exe;
npm ERR! path C:\WINDOWS\system32\cmd.exe;
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn C:\WINDOWS\system32\cmd.exe;
npm ERR! @angular/cli@8.0.2 postinstall: `node ./bin/postinstall/script.js`
npm ERR! spawn C:\WINDOWS\system32\cmd.exe; ENOENT
npm ERR!
npm ERR! Failed at the @angular/cli@8.0.2 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

在这种情况下,由于系统变量中路径末尾的分号而发生错误。

ComSpec path C:\Windows\System32\cmd.exe;

从路径中删除分号对我有用。