I've seen other errors about missing typelib(Atk) too. This might be related to fact that lib(|64)gtk-gir3.0 in current Cauldron has way less requires than one in mga5.

In Cauldron:
$ urpmq --requires lib64gtk-gir3.0
lib64gtk+3_0[== 3.17.4-1.mga6]
libgdk-3.so.0()(64bit)
libgtk-3.so.0()(64bit)
typelib(cairo)[== 1.0]
typelib(xlib)[== 2.0]

In Mga5:
$ urpmq --requires lib64gtk-gir3.0
lib64gtk+3_0[== 3.14.8-5.mga5]
libgdk-3.so.0()(64bit)
libgtk-3.so.0()(64bit)
typelib(Atk)[== 1.0]
typelib(Gdk)[== 3.0]
typelib(GdkPixbuf)[== 2.0]
typelib(Gio)[== 2.0]
typelib(Pango)[== 1.0]
typelib(cairo)[== 1.0]
typelib(xlib)[== 2.0]

I'll investigate what's causing this.

CC: (none) => jani.valimaa

Seems g-ir-dep-tool doesn't find deps correctly when using 'lazy loading'.

To use strict loading we'll have to add requires for gir pkgs (pkgs providing .typelib file) to all devel pkgs which are providing .gir file(s). Suse is actually doing it like this.

g-ir-dep-tool using our 'lazy loading' patch:
=============================================
$ g-ir-dep-tool Gtk 3.0

** (process:4822): CRITICAL **: get_typelib_dependencies_transitive: assertion 'typelib != NULL' failed
typelib: xlib-2.0
shlib: libgtk-3.so.0
shlib: libgdk-3.so.0

self-built g-ir-dep-tool without our 'lazy loading' patch:
==========================================================
$ ./g-ir-dep-tool Gtk 3.0
typelib: Pango-1.0
typelib: GObject-2.0
typelib: xlib-2.0
typelib: cairo-1.0
typelib: Gdk-3.0
typelib: Gio-2.0
typelib: Atk-1.0
typelib: GdkPixbuf-2.0
typelib: GModule-2.0
typelib: GLib-2.0
shlib: libgtk-3.so.0
shlib: libgdk-3.so.0

In both cases all required -gir pkgs are installed.

The isssue should be fixed with gtk+3.0-3.17.4-2.mga6. Closing as FIXED, feel free to reopen if needed.

Status: NEW => RESOLVED
Resolution: (none) => FIXED

For the record, there was a similar issue with gnome-shell that failed to start:

juin 29 05:57:47 harmonia.blino.org gnome-session[2109]: (gnome-shell:4141): Gjs-WARNING **: JS ERROR: Error: Requiring Clutter, version 1.0: Typelib file for namespace 'CoglPango', version '1.0' not found
juin 29 05:57:47 harmonia.blino.org gnome-session[2109]: @resource:///org/gnome/shell/ui/environment.js:11
juin 29 05:57:47 harmonia.blino.org gnome-session[2109]: @<main>:1
juin 29 05:57:47 harmonia.blino.org gnome-session[2109]: ** Message: Execution of main.js threw exception: JS_EvaluateScript() failed
juin 29 05:57:48 harmonia.blino.org gnome-session[2109]: (gnome-settings-daemon:2960): GLib-GIO-CRITICAL **: g_dbus_proxy_call_internal: assertion 'GIS_DBUS_PROXY (proxy)' failed

lib64cogl-pango-gir1.0 was not required automatically by gnome-shell (or clutter),

CC: (none) => mageia

(In reply to Olivier Blin from comment #4)
> For the record, there was a similar issue with gnome-shell that failed to
> start:
> 
..snip
> 
> lib64cogl-pango-gir1.0 was not required automatically by gnome-shell (or
> clutter),

I'll check this later, hopefully rebuild is all it needs.

BTW does this only affects Cauldron or mga5 too?

Forgot that, I've the answer

Any chance of a backport to mga5?  I see this with mgaapplet, which I assume to be the same bug:

$ mgaapplet
Ignore the following Glib::Object::Introspection & Gtk3 warnings
Typelib file for namespace 'Gtk', version '3.0' not found at /usr/lib/perl5/vendor_perl/5.20.1/x86_64-linux-thread-multi/Glib/Object/Introspection.pm line 91.
BEGIN failed--compilation aborted at /usr/lib/libDrakX/mygtk3.pm line 15.
Compilation failed in require at /usr/bin/mgaapplet line 34.
BEGIN failed--compilation aborted at /usr/bin/mgaapplet line 34.
$

This is strangely user dependent - this error happens only for one user, but not for root or any other users.

CC: (none) => true.bugman

Assuming this is the same bug, the script failure can be reproduced with a single lined perl script containing:

use Gtk3;