Deafult Installation with pip and execution of examples leads to errors

[vigisushrutha23]

I was not sure if I needed to open a bug so I am starting off with the discussion.

Installation steps followed
System OS: Ubuntu 20.04

1. Installed ignition gazebo fortress
2. Create Virtual Environment followed by pip install scenario, pip install gym-ignition.
3. Running Panda example leads to the following error
   
4. I modified the python file in question to accept gazebo version 6.10.0 as I couldn't install the pre-release 6.0.0 version.
5. After making that correction I ran the example code again and got this error.

Can you please let me know what I am missing as it seems an error in the setup of the packages? Or is it an issue solely because of the version of the ignition gazebo I have installed?