我安装了6.0.1版.您完成的卸载步骤对我也不起作用.

I have version 6.0.1 installed. The steps you went through to uninstall did not work for me too.

因此，进入漫游文件夹并找到npm并手动删除angular >> angular-cli

So, go into you roaming folder and find npm and manually delete angular >> angular-cli

Angular对我来说位于这条路径上

Angular was located at this path for me:

C:\Users\{me}\AppData\Roaming\npm\node_modules

删除角度文件夹和/或angualr-cli文件夹

Delete the angular folder and/or the angualr-cli folder

似乎旧文件结构与今天的文件结构不同.

It seems like the old file structure is different from what it is today.

然后我使用以下方法重新安装:

I then reinstalled using:

npm install -g @angular/cli@latest

现在打开:

Angular CLI: 6.0.3
Node: 8.11.1
OS: win32 x64
Angular:
...