Viber неожиданно прерывается при запуске

Просто установил Viber на 64-битную Ubuntu 14.10, но запустил его из меню или .desktop файл не работал; запуск с терминала либо с sudo-правами, либо без результатов с сообщением "Aborted"; быстрый выстрел из результатов GDB:

 Starting program: /opt/viber/Viber 
Cannot exec /opt/viber/Viber -c exec /opt/viber/Viber .
Error: No such file or directory
During startup program exited with code 127.

Несмотря на все это, file /opt/viber/Viber результаты в /opt/viber/Viber: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=27413a56e406a81595a30b69d35ba4e3ebfb0760, not stripped

Все разделяемые библиотеки тоже удовлетворены использованием ldd /opt/viber/Viber:

    linux-vdso.so.1 =>  (0x00007fff8ddef000)
    libqfacebook.so => /opt/viber/libqfacebook.so (0x00007f3e43f02000)
    libXss.so.1 => /opt/viber/libXss.so.1 (0x00007f3e43cfd000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3e43adb000)
    libQt5Widgets.so.5 => /opt/viber/libQt5Widgets.so.5 (0x00007f3e432be000)
    libQt5Network.so.5 => /opt/viber/libQt5Network.so.5 (0x00007f3e42f58000)
    libQt5Sql.so.5 => /opt/viber/libQt5Sql.so.5 (0x00007f3e42d17000)
    libQt5WebKit.so.5 => /opt/viber/libQt5WebKit.so.5 (0x00007f3e40823000)
    libQt5WebKitWidgets.so.5 => /opt/viber/libQt5WebKitWidgets.so.5 (0x00007f3e405df000)
    libQt5Declarative.so.5 => /opt/viber/libQt5Declarative.so.5 (0x00007f3e4004c000)
    libQt5DBus.so.5 => /opt/viber/libQt5DBus.so.5 (0x00007f3e3fdc8000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f3e3fbc3000)
    librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f3e3f9bb000)
    libQt5OpenGL.so.5 => /opt/viber/libQt5OpenGL.so.5 (0x00007f3e3f761000)
    libQt5Gui.so.5 => /opt/viber/libQt5Gui.so.5 (0x00007f3e3f03e000)
    libQt5Core.so.5 => /opt/viber/libQt5Core.so.5 (0x00007f3e3e920000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f3e3e611000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3e3e30a000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f3e3e0f4000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3e3dd2f000)
    libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f3e3d9f5000)
    libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f3e3d7e3000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f3e3d5c8000)
    libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f3e3d32b000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f3e44128000)
    libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f3e3d121000)
    libXcomposite.so.1 => /usr/lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007f3e3cf1d000)
    libicui18n.so.48 => /opt/viber/libicui18n.so.48 (0x00007f3e3cb55000)
    libicuuc.so.48 => /opt/viber/libicuuc.so.48 (0x00007f3e3c7eb000)
    libxslt.so.1 => /usr/lib/x86_64-linux-gnu/libxslt.so.1 (0x00007f3e3c5ad000)
    libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 (0x00007f3e3c1e4000)
    libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f3e3bed5000)
    libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f3e3bc82000)
    libgstreamer-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstreamer-0.10.so.0 (0x00007f3e3b998000)
    libgstapp-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstapp-0.10.so.0 (0x00007f3e3b78b000)
    libgstbase-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstbase-0.10.so.0 (0x00007f3e3b536000)
    libgstinterfaces-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstinterfaces-0.10.so.0 (0x00007f3e3b324000)
    libgstpbutils-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstpbutils-0.10.so.0 (0x00007f3e3b100000)
    libgstvideo-0.10.so.0 => /usr/lib/x86_64-linux-gnu/libgstvideo-0.10.so.0 (0x00007f3e3aee2000)
    libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007f3e3ac1b000)
    libQt5Quick.so.5 => /opt/viber/libQt5Quick.so.5 (0x00007f3e3a666000)
    libQt5Qml.so.5 => /opt/viber/libQt5Qml.so.5 (0x00007f3e3a051000)
    libQt5PrintSupport.so.5 => /opt/viber/libQt5PrintSupport.so.5 (0x00007f3e39ded000)
    libQt5XmlPatterns.so.5 => /opt/viber/libQt5XmlPatterns.so.5 (0x00007f3e397ac000)
    libQt5Script.so.5 => /opt/viber/libQt5Script.so.5 (0x00007f3e3932f000)
    libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f3e3910f000)
    libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f3e38ee6000)
    libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f3e38cbc000)
    libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f3e38ab8000)
    libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f3e388b2000)
    libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f3e386b0000)
    libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f3e38498000)
    libxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 (0x00007f3e38293000)
    libxcb-dri3.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0 (0x00007f3e38090000)
    libxcb-present.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-present.so.0 (0x00007f3e37e8c000)
    libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007f3e37c86000)
    libxshmfence.so.1 => /usr/lib/x86_64-linux-gnu/libxshmfence.so.1 (0x00007f3e37a84000)
    libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f3e3787d000)
    libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f3e37671000)
    libicudata.so.48 => /opt/viber/libicudata.so.48 (0x00007f3e36300000)
    libicuuc.so.52 => /usr/lib/x86_64-linux-gnu/libicuuc.so.52 (0x00007f3e35f82000)
    libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f3e35d15000)
    libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f3e35b0c000)
    libgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007f3e35908000)
    liborc-0.4.so.0 => /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0 (0x00007f3e35683000)
    libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f3e3547f000)
    libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f3e35278000)
    libicudata.so.52 => /usr/lib/x86_64-linux-gnu/libicudata.so.52 (0x00007f3e33a0b000)

Наконец, я попытался включить и выключить его, но ничего об этом не изменилось.

В чем может быть проблема?

ОБНОВЛЕНИЕ 1: полный результат GDB

GNU gdb (Ubuntu 7.8.2-0ubuntu1) 7.8.2
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
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<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) file /opt/viber/Viber 
Reading symbols from /opt/viber/Viber...done.
(gdb) run
Starting program: /opt/viber/Viber 
Cannot exec /opt/viber/Viber -c exec /opt/viber/Viber .
Error: No such file or directory
During startup program exited with code 127.
(gdb) backtrace
No stack.
(gdb)