Yeoman无法识别全局安装的生成器

我跑了sudo npm install -g generator-flask,它被保存了.我能够通过跑步确认npm list-g.

然后我跑了yo flask.认为这将起作用,我得到一个错误消息:

Error flask

You don't seem to have a generator with the name flask installed.
You can see available generators with npm search yeoman-generator and then install them with npm install [name].
To see the 22 registered generators run yo with the `--help` option.

我通过跑步告诉我,yo --help并发现烧瓶发生器不在那里.

我试试这个,sudo npm install -g generator-angular-flask用Angular Flask重新创建问题.我假设所有发生器都会发生这种情况,这就是为什么我把它标题为Yeoman没有认识到新的npm安装.

有谁知道为什么会这样？