You are missing the X11 screen saver shared library.   "yum search Xss"  shows that it is provided by the libXScrnSaver package.  So your IT can do a "yum install libXSrcnSaver" to make it available.     HTH,     Greg On 9/12/24 12:49, Evan Kantrowitz via Chimera-users wrote:

I have been working with my IT department to port a script that uses Chimera from an old linux machine to a new Linux machine running RHEL.

I setup my own test node at home with RHEL (same version).  I got the script working on my test node.  I am now moving the system to the IT node.  When I reinstalled the same version of Chimera (Chimera64-2024-04-12) on that machine and run the script when Chimera starts I get Tkinter errors and others (see below).

 What do I need to do to get this version of Chimera running?  Any suggestions would be appreciated. Should I try a more current build?

ERRORS:

Traceback (most recent call last):   File "/opt/viewmotions/chimera64/share/__main__.py", line 73, in <module>     value = chimeraInit.init(sys.argv)   File "/opt/viewmotions/chimera64/share/chimeraInit.py", line 680, in init     import chimera   File "/opt/viewmotions/chimera64/share/chimera/__init__.py", line 2782, in <module>     from SimpleSession import BEGIN_RESTORE_SESSION, END_RESTORE_SESSION   File "/opt/viewmotions/chimera64/share/SimpleSession/__init__.py", line 14, in <module>     from save import saveSession, sessionID, noAutoRestore, autoRestorable, \   File "/opt/viewmotions/chimera64/share/SimpleSession/save.py", line 13, in <module>     from chimera import replyobj, selection, SessionPDBio, version   File "/opt/viewmotions/chimera64/share/chimera/replyobj.py", line 24, in <module>     import Tkinter   File "/opt/viewmotions/chimera64/lib/python2.7/lib-tk/Tkinter.py", line 39, in <module>     import _tkinter # If this fails your Python may not be configured for Tk ImportError: libXss.so <http://libxss.so/>.1: cannot open shared object file: No such file or directory

Thanks

Evan ----------------------------------------------------------------------------- Evan R. Kantrowitz, Ph.D evan.kantrowitz@bc.edu Emeritus Professor of Chemistry  Cell: 617-775-9915 Boston College www2.bc.edu/evan-kantrowitz <http://www2.bc.edu/~kantrow> -----------------------------------------------------------------------------

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