Could not remove gz-garden

Dear all,
I followed the instruction, when I want to remove gz-garden using sudo apt remove gz-garden, there is a mistake as follow:

Reading package lists… Done
Building dependency tree
Reading state information… Done
You might want to run ‘apt --fix-broken install’ to correct these.
The following packages have unmet dependencies:
gazebo9-plugin-base : Depends: gazebo9 (= 9.19.0-2~focal) but it is not going to be installed
E: Unmet dependencies. Try ‘apt --fix-broken install’ with no packages (or specify a solution).

How could I resolve this, thanks

Unfortunately, Gazebo-garden binaries don’t play well with Gazebo-classic (gazebo9 or gazebo11) binaries on Ubuntu (see You can try the suggested fix (apt --fix-broken install) or try uninstalling gazebo9-plugin-base manually. After everything is uninstalled, you can then try installing gazebo9 again.

Hi, I have tried this, but it does not work! So I remove them