sources.list-Need interpretation of errors etc

[Bumpalot]

I would appreciate suggestions on how to fix the problems listed below:
bumpy@bumpyputer:~$ sudo gedit /etc/apt/sources.list
[sudo] password for bumpy:

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_file: assertion `section != NULL' failed

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_end_position: assertion `section != NULL' failed

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_end_line: assertion `section != NULL' failed

(gedit:4904): Gtk-WARNING **: Theme parsing error: <data>:1:0: Unknown value 'GTK_SHADOW_NONE' for enum type 'GtkShadowType'

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_file: assertion `section != NULL' failed

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_end_position: assertion `section != NULL' failed

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_end_line: assertion `section != NULL' failed

(gedit:4904): Gtk-WARNING **: Theme parsing error: <data>:1:0: Unknown value 'GTK_SHADOW_NONE' for enum type 'GtkShadowType'

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_file: assertion `section != NULL' failed

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_end_position: assertion `section != NULL' failed

(gedit:4904): Gtk-CRITICAL **: gtk_css_section_get_end_line: assertion `section != NULL' failed

(gedit:4904): Gtk-WARNING **: Theme parsing error: <data>:1:0: Unknown value 'GTK_SHADOW_NONE' for enum type 'GtkShadowType'

** (gedit:4904): WARNING **: Could not load theme icon gtk-home: Icon 'gtk-home' not present in theme
bumpy@bumpyputer:~$

[Snowhog]

Huh? Confused here. This can't be the contents your your /etc/apt/sources.list file.

[HalationEffect]

I'd suggest doing two things differently.

1st, don't run GUI programs with sudo - use kdesudo instead. 2nd, gedit is a GNOME utility; I'd recommend using KDE's kate instead.

Try the following command instead of the one you used in the post above:

kdesudo kate /etc/apt/sources.list

[Bumpalot]

bumpy@bumpyputer:~$ kdesudo kate /etc/apt/sources.list
admin
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QStr ing,QString,QString)
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
kbuildsycoca4 running...
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/gnome-background-panel.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/gnome-screen-panel.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/gnome-user-accounts-panel.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/gnome-region-panel.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/gnome-color-panel.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/gnome-power-panel.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/avidemux-gtk.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(5570) KConfigGroup::readXdgListEntry: List entry MimeType in "/usr/share/applications/avidemux-gtk.desktop" is not compliant with XDG standard (missing trailing semicolon).
bumpy@bumpyputer:~$
Thanks for your speedy help!!
Now, would you please explain how I can fix the errors.

[Snowhog]

Those aren't errors -- this is what you see when you launch a GUI application from a console. I'm assuming that after you provide your password, that kate launches and the /etc/apt/sources.list file is open for editing.

Here, launching Kate from a console (kdesudo kate /etc/apt/sources.list), this is what the console shows:

QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QStr ing,QString,QString)
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
kbuildsycoca4 running...
kbuildsycoca4(32325) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/kde4/bluedevil-network-panu.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(32325) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/kde4/bluedevil-network-dun.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(32325) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/im-switch.desktop" is not compliant with XDG standard (missing trailing semicolon).
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QFileSystemWatcher: failed to add paths: /root/.config/ibus/bus

Again, these aren't errors. If you'd rather not see this, then launch Kate from Kicker: Alt+F2 and type kdesudo kate /etc/apt/sources.list

[Bumpalot]

OK - Thanks. Am using Ubuntu 12.04 & KDE Desktop because it is much more interesting than Gnome. Everything is working excellently, especially now I know I don't have those "erroirs"!!
Thanks agin.