ros-kinetic-husky-simulator installation failed

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I try to install ros-kinetic-husky-simulator by commanding:

$ sudo apt-get install ros-kinetic-husky-simulator

as is said in the tutorial at http://wiki.ros.org/husky_gazebo/Tuto... .

I get this error

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

and notice a lot of errors like this one

E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-kinetic-husky-gazebo/ros-kinetic-husky-gazebo_0.3.1-0xenial-20190131-135412-0800_amd64.deb  404  Not Found [IP: 64.50.233.100 80]

If I look at the website, I see that version 0.3.1 is no longer there. It now contains 0.3.3. Therefore I suppose the installation-link that I am using is not working properly. Can anybody help me on how to install the simulator? (I am at beginners-level in Ubuntu.) And also, hopefully we can fix it in the tutorial, as I suppose at this moment everybody who tries to install it has the same problem.

Thanks in advance!