That means that the Ubuntu 22.04 container is running on top of an OS that has too old of a kernel.  For example, RHEL/CentOS 7. ChimeraX needs a 3.11 kernel or newer.   So, if you run the container on top of a newer version of Linux, like RHEL 8, you'd be fine. For an unsupported way to workaround the problem, see https://www.rbvi.ucsf.edu/pipermail/chimerax-users/2022-June/003880.html. If you are not using the GUI, then the workaround should be fine. If you are using the GUI, ChimeraX might crash in mysterious ways.     HTH,     Greg On 10/6/22 12:26, Hoover, David (NIH/CIT) [E] via ChimeraX-users wrote:

Hi,

I'm trying to create a Ubuntu 22.04 container for ChimeraX v1.4 and no matter what I do I get this error message:

NOTE: Traceback (most recent call last):   File "/usr/lib/ucsf-chimerax/lib/python3.9/runpy.py", line 197, in _run_module_as_main     return _run_code(code, main_globals, None,   File "/usr/lib/ucsf-chimerax/lib/python3.9/runpy.py", line 87, in _run_code     exec(code, run_globals)   File "/usr/lib/ucsf-chimerax/lib/python3.9/site-packages/ChimeraX_main.py", line 1021, in <module>     exit_code = init(sys.argv)   File "/usr/lib/ucsf-chimerax/lib/python3.9/site-packages/ChimeraX_main.py", line 573, in init     from chimerax.ui import initialize_qt   File "/usr/lib/ucsf-chimerax/lib/python3.9/site- packages/chimerax/ui/__init__.py", line 21, in <module>     from .gui import MainToolWindow, initialize_qt, menu_capitalize   File "/usr/lib/ucsf-chimerax/lib/python3.9/site- packages/chimerax/ui/gui.py", line 130, in <module>     from Qt.QtWidgets import QApplication   File "/usr/lib/ucsf-chimerax/lib/python3.9/site-packages/Qt/__init__.py", line 64, in <module>     from PyQt6.QtCore import PYQT_VERSION_STR as PYQT6_VERSION ImportError: libQt6Core.so.6: cannot open shared object file: No such file or directory

BUG: ImportError: libQt6Core.so.6: cannot open shared object file: No such file or directory   File "/usr/lib/ucsf-chimerax/lib/python3.9/site-packages/Qt/__init__.py", line 64, in from PyQt6.QtCore import PYQT_VERSION_STR as PYQT6_VERSION    _See log for complete Python traceback._

I am attempting to install into Ubuntu 22.04 with ever Qt6 package available, but nothing seems to help.  The library in question definitely exists at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6, along with a multitude of other libQt6* libraries.

Is there something additional that needs to be done or installed to enable ChimeraX v1.4 to run?  I have tried

  export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu:$LD_LIBRARY_PATH

but this does not help.  Any insight would be appreciated.

David