O Viber é anulado inesperadamente durante o lançamento

Question

Apenas instalei o Viber em um ubuntu de 64 bits 14.10, mas iniciá-lo no menu ou no arquivo .desktop não funcionou; lançamento do terminal com sudo-rights ou não resulta com uma mensagem "Aborted"; uma foto rápida dos resultados do 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.

Apesar de tudo, file /opt/viber/Viber resulta em /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

Todas as bibliotecas compartilhadas também estão satisfeitas usando 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)

Por fim, tentei ativá-lo e desativá-lo, mas nada mudou.

Qual poderia ser o problema?

UPDATE 1: resultado completo do 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>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
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:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<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) 

    

Answer 1

Eu resolvi esse problema especificando a variável /opt/viber/ in Path dentro do arquivo /usr/share/applications/viber.desktop .