Snap ubuntu 22.04.2 using octave 8 having Qt and font errors

~$ snap run octave --no-gui QStandardPaths: XDG_RUNTIME_DIR points to non-existing path ‘/run/user/1000/snap.octave’, please create i. Qt: Session management error: Could not open network socket Fontconfig warning: “/etc/fonts/fonts.conf”, line 5: unknown element “its:rules” Fontconfig warning: “/etc/fonts/fonts.conf”, line 6: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/fonts.conf”, line 6: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/fonts.conf”, line 6: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/fonts.conf”, line 7: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/fonts.conf”, line 7: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/fonts.conf”, line 9: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 5: unknown element “its:translateRul” Fontconfig error: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/10-hinting-slight.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 5: unknown element “its:translat” Fontconfig error: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/10-scale-bitmap-fonts.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 5: unknown element “its:translate” Fontconfig error: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/11-lcdfilter-default.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 5: unknown element “its:translate” Fontconfig error: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/20-unhint-small-vera.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 5: unknown element “its:translateRul” Fontconfig error: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/30-metric-aliases.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/40-nonlatin.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/40-nonlatin.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/40-nonlatin.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/40-nonlatin.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/40-nonlatin.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/40-nonlatin.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/40-nonlatin.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/45-generic.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/45-generic.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/45-generic.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/45-generic.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/45-generic.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/45-generic.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/45-generic.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/45-latin.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/45-latin.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/45-latin.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/45-latin.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/45-latin.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/45-latin.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/45-latin.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/49-sansserif.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/49-sansserif.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/49-sansserif.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/49-sansserif.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/49-sansserif.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/49-sansserif.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/49-sansserif.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/50-user.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/50-user.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/50-user.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/50-user.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/50-user.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/50-user.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/50-user.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/51-local.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/51-local.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/51-local.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/51-local.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/51-local.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/51-local.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/51-local.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/60-generic.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/60-generic.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/60-generic.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/60-generic.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/60-generic.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/60-generic.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/60-generic.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/60-latin.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/60-latin.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/60-latin.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/60-latin.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/60-latin.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/60-latin.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/60-latin.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/65-fonts-persian.conf”, line 34: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/65-fonts-persian.conf”, line 35: unknown element “its:translateRul” Fontconfig error: “/etc/fonts/conf.d/65-fonts-persian.conf”, line 35: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/65-fonts-persian.conf”, line 35: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/65-fonts-persian.conf”, line 36: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/65-fonts-persian.conf”, line 36: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/65-nonlatin.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/65-nonlatin.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/65-nonlatin.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/65-nonlatin.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/65-nonlatin.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/65-nonlatin.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/65-nonlatin.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/69-unifont.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/69-unifont.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/69-unifont.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/69-unifont.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/69-unifont.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/69-unifont.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/70-no-bitmaps.conf”, line 8: unknown element “description” Fontconfig warning: “/etc/fonts/conf.d/80-delicious.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/80-delicious.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/80-delicious.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/80-delicious.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/80-delicious.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/80-delicious.conf”, line 6: invalid attribute ‘version’ Fontconfig warning: “/etc/fonts/conf.d/90-synthetic.conf”, line 4: unknown element “its:rules” Fontconfig warning: “/etc/fonts/conf.d/90-synthetic.conf”, line 5: unknown element “its:translateRule” Fontconfig error: “/etc/fonts/conf.d/90-synthetic.conf”, line 5: invalid attribute ‘translate’ Fontconfig error: “/etc/fonts/conf.d/90-synthetic.conf”, line 5: invalid attribute ‘selector’ Fontconfig error: “/etc/fonts/conf.d/90-synthetic.conf”, line 6: invalid attribute ‘xmlns:its’ Fontconfig error: “/etc/fonts/conf.d/90-synthetic.conf”, line 6: invalid attribute ‘version’ Fontconfig error: Cannot load config file from /etc/fonts/fonts.conf GNU Octave, version 8.0.0 Copyright © 1993-2022 The Octave Project Developers. This is free software; see the source code for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, type ‘warranty’.

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octave:1>

$ snap info octave|grep ^contact
contact:   https://github.com/octave-snap/octave-snap/issues
$

you should report this to the packagers issue tracker (not sure the packagers read this forum)…