Hi everybody, I've just tried to install darktable-2.0.7-3.el7 from EPEL with yum under SL 7.3. I get the following error message :    dt_gui_gtk_init: error parsing /usr/share/darktable/darktable.css: darktable.css:30:15Missing name of pseudo-class    darktable: symbol lookup error: /usr/bin/../lib64/darktable/libdarktable.so: undefined symbol: gdk_display_get_default_seat I list below the lines 30 to 32 of /usr/share/darktable/darktable.css    #main_window *:disabled {      color: black;    } as for the following command : nm -D /usr/bin/../lib64/darktable/libdarktable.so |grep gdk_disp                  U gdk_display_get_default                  U gdk_display_get_default_seat Do you please have an idea about what is wrong ?