meshes_installer_27.pyc not installable

I am using Linux Mint 20 with Kernel: Linux 5.4.0-52-generic and Python 2.7.18

When executing any test program with an IDE (pycharm), python2.7 says The robot meshes and URDFs will be installed in the /home/mara/.qibullet/1.4.0 folder. You will need to agree to the meshes license in order to be able to install them. Continue the installation (y/n)? As soon as I insert y, it’s sending an Error message:

Installing the meshes and URDFs in the /home/mara/.qibullet/1.4.0 folder...
Python 2.7 detected
E
======================================================================
ERROR: setUpClass (__main__.PepperBaseTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/mara/Masterarbeit/Software/qibullet/tests/base_test.py", line 27, in setUpClass
    spawn_ground_plane=True)
  File "/home/mara/.local/lib/python2.7/site-packages/qibullet/simulation_manager.py", line 145, in spawnPepper
    pepper_virtual = PepperVirtual()
  File "/home/mara/.local/lib/python2.7/site-packages/qibullet/pepper_virtual.py", line 36, in __init__
    tools._install_resources()
  File "/home/mara/.local/lib/python2.7/site-packages/qibullet/tools.py", line 145, in _install_resources
    import meshes_installer_27 as meshes_installer
ImportError: Bad magic number in /home/mara/.local/lib/python2.7/site-packages/qibullet/robot_data/installers/meshes_installer_27.pyc

----------------------------------------------------------------------
Ran 0 tests in 13.655s

FAILED (errors=1)

When executing any test program in my terminal, the gui starts, but I can’t see any robot mesh. When I execute this: $ sudo python meshes_installer_27.pyc There is this error message. RuntimeError: Bad magic number in .pyc file

[mbusy]

By “git LFS problem”, I’m referring to what is explained in the wiki section (installation from source) that I linked:

You will encounter a bad magic number error when installing the extra resources if git-lfs isn’t correctly installed. To solve that error, install git-lfs, go the the repository folder, and type in git lfs pull. This command will download the lfs resources, you can then resume installing qiBullet.

But since you installed qiBullet via pip, you shouldn’t get that issue. I already relaunched a CI job (Ubuntu Xenial, Python 2.7.15), it manages to install the project (and the meshes) from source, and to run the unit tests.

I will try to reproduce your bug, keep me posted if you have more information

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