X Error of failed request: GLXBadFBConfig

[probonopd]

me@host:~/Downloads/icesl/bin$ '/home/me/Downloads/icesl/bin/IceSL-slicer'
( IceSL 'Dec 15 2018 20:11:24')
IceSL is highly experimental software.   =====>>> USE AT YOUR OWN RISK <<<=====
We strongly recommend that you visually check the produced G-code, and that you
supervise the printing process to avoid any damage to the printing nozzle due  
to improper z-levels or improper positioning of the printing mechanism.

[Localization] language used "en"
X Error of failed request:  GLXBadFBConfig
  Major opcode of failed request:  156 (GLX)
  Minor opcode of failed request:  34 ()
  Serial number of failed request:  40
  Current serial number in output stream:  39
me@host:~/Downloads/icesl/bin$ cat /etc/os-release 
NAME="Ubuntu"
VERSION="18.04 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic