我有一个问题，我正在尝试在 MAAS 服务器的情况下使用启动资源，这是我的命令：
borek@local:/test$ maas local boot-resources create name="ubuntu1804" title="Custom 18.04" architecture="amd64/generic" content@=Ubuntu-Desktop
基本上说实话，我的同事在同一台服务器上使用了完全相同的命令，对他来说，它是有效的。我对此命令的输出是：
usage: maas local [-h] COMMAND ...
Issue commands to the MAAS region controller at $API.
optional arguments:
-h, --help show this help message and exit
drill down:
COMMAND
devices Manage the collection of all the devices in the MAAS.
files Manage the collection of all the files in this MAAS.
machines Manage the collection of all the machines in the MAAS.
nodes Manage the collection of all the nodes in the MAAS.
rack-controllers Manage the collection of all rack controllers in MAAS.
region-controllers
Manage the collection of all region controllers in MAAS.
version Information about this MAAS instance.
This is a profile. Any commands you issue on this profile will
operate on the MAAS region server.
The command information you see here comes from the region server's
API; it may differ for different profiles. If you believe the API may
have changed, use the command's 'refresh' sub-command to fetch the
latest version of this help information from the server.
argument COMMAND: invalid choice: 'boot-resources' (choose from 'devices', 'files', 'machines', 'nodes', 'rack-controllers', 'region-controllers', 'version')
知道为什么它不起作用吗？