Dear Expert,

Please see the error message from the terminal when I tried to load fsleyes. Please provide me a solution to fix it.

[fsluser@localhost ~]$ fsleyes 

Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element

Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element

Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number

Fontconfig warning: "/etc/fonts/conf.d/65-0-lohit-bengali.conf", line 32: unknown element "langset"

Fontconfig warning: "/etc/fonts/conf.d/69-gnu-free-sans.conf", line 24: unknown element "langset"

Fontconfig warning: "/etc/fonts/conf.d/69-gnu-free-serif.conf", line 24: unknown element "langset"

(fsleyes:3558): Gtk-WARNING **: GModule (/usr/lib64/gtk-2.0/2.10.0/immodules/im-ibus.so) initialization check failed: GLib version too old (micro mismatch)

(fsleyes:3558): Gtk-WARNING **: Loading IM context type 'ibus' failed

 WARNING          __init__.py  596: create          - GLContext callback function raised NullFunctionError: Attempt to call an undefined function glutInit, check for bool(glutInit) before calling

Traceback (most recent call last):

  File "fsleyes/gl/__init__.py", line 590, in create

  File "fsleyes/main.py", line 371, in realCallback

  File "fsleyes/gl/__init__.py", line 377, in bootstrap

  File "site-packages/OpenGL/GLUT/special.py", line 333, in glutInit

  File "site-packages/OpenGL/platform/baseplatform.py", line 407, in __call__

NullFunctionError: Attempt to call an undefined function glutInit, check for bool(glutInit) before calling

[fsluser@localhost ~]$ 

Thanks

Ramesh