Mechanical Launcher in RHEL 7.9: “GLIBCXX” error

- August 22, 2023 at 4:30 pm
  
  CMCsupport1
  Bbp_participant
  
  Good afternoon,
  We have installed Ansys 2023 R2 in our Linux server and Cloud systems. We are running RHEL 7.9 in these environments. When starting the Mechanical launcher, using “launcher232”, we see the following error report:
  Traceback (most recent call last):
  File "/tools/ansys/ansys.2023r2/v232/commonfiles/launcherQt/source/LauncherMain.py", line 21, in from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget, QTabWidget, QFormLayout, QLineEdit, QLabel, QPushButton, QFileDialog, \
  ImportError: /tools/ansys/ansys.2023r2/v232/commonfiles/AAS/bin/linx64/libstdc++.so.6: version `GLIBCXX_3.4.26' not found (required by /tools/ansys/RedHawk/RedHawk_Linux64e7_V2023R2.1/lib/libQt5Widgets.so.5)
  In the directory:
  /tools/ansys/ansys.2023r2/v232/commonfiles/AAS/bin/linx64/
  … there is a softlink “libstdc++.so.6” that points to a file “libstdc++.so.6.0.25”, sitting next to it in the same directory.
  Using a "locate libstdc++.so.6" command in a terminal, we see that our RHEL 7.9 OS has "libstdc++.so.6.0.19" under /usr/lib, /usr/lib64 and one other path, and that /usr/lib is in our LD_LIBRARY_PATH.
  What must we do in order to direct the software to the “GLIBCXX” library? Please advise.
  
  Regards,
  CMC Microsystems Technical Support
- August 25, 2023 at 3:31 pm
  
  George Karnos
  Ansys Employee
  
  1. Check the installation Guide for Prerequisites. Verify that they are installed.
  2. Add the ANSYS PATH to the LD_LIBRARY_PATH
  /tools/ansys/ansys.2023r2/v232/commonfiles/AAS/bin/linx64/