[SOLVED] QT Deploy : This application failed to start because it could not find or load the Qt platform plugin "xcb" in "".

DendyGema

i'm using Ubuntu 14.04.10 with QT 5.6
i have been create my .deb with dpkg-deb --build MyApp
when i install it on another ubuntu 14.04.10 but without QT
i cannot execute my application ..

This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

Available platform plugins are: xcb.

Reinstalling the application may fix this problem.
Aborted (core dumped)

my library on /usr/lib/x86_64-linux-gnu/qt5
my libqxcb.so on /usr/lib/x86_64-linux-gnu/qt5/platforms and /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms

hskoglund

Hi, try putting the .so files that the plugin libqxcb.so needs together with it in the same platforms directory, they are:

libQt5XcbQpa.so.5
libQt5DBus.so.5

Also see same discussion here

DendyGema

like this ..??

#BEFORE

[DEBREATE-0.7.10]
<<CTRL>>
Package: myapp
Version: 1.0-2
Section: utils
Maintainer: Zenaki Kurniawan <zenaki.zen.aku@gmail.com>
Priority: optional
Architecture: amd64
Depends: libc6
Description: test deploy
<</CTRL>>
<<FILES>>
1
/home/zenaki/Qt5.6.0/5.6/gcc_64/plugins/platforms/libqxcb.so* -> libqxcb.so -> /usr/lib/x86_64-linux-gnu/qt5/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.so.5* -> libQt5XcbQpa.so.5 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.so.5* -> libQt5Widgets.so.5 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.so.5* -> libQt5SerialPort.so.5 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.so.5* -> libQt5Gui.so.5 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.so.5* -> libQt5DBus.so.5 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.so.5* -> libQt5Core.so.5 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicuuc.so.56* -> libicuuc.so.56 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicui18n.so.56* -> libicui18n.so.56 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicudata.so.56* -> libicudata.so.56 -> /usr/lib/x86_64-linux-gnu/qt5
/home/zenaki/QT Project/test deploy/myapp/icon.png -> icon.png -> /usr/share/pixmaps
/home/zenaki/QT Project/test deploy/myapp/myapp.sh -> myapp.sh -> /usr/local/bin
/home/zenaki/QT Project/test deploy/myapp/myapp* -> myapp -> /usr/local/bin
<</FILES>>
<<SCRIPTS>>
<<PREINST>>
0
<</PREINST>>
<<POSTINST>>
0
<</POSTINST>>
<<PRERM>>
0
<</PRERM>>
<<POSTRM>>
0
<</POSTRM>>
<</SCRIPTS>>
<<CHANGELOG>>
<<DEST>>DEFAULT<</DEST>>

<</CHANGELOG>>
<<COPYRIGHT>>
<</COPYRIGHT>>
<<MENU>>
1
Name=myapp
Version=1.0-2
Exec=bash /usr/local/bin/myapp.sh
Comment=test deploy
Icon=/usr/share/pixmaps/icon.png
Type=Application
Terminal=false
StartupNotify=false
Encoding=UTF-8
Categories=Utility;Qt;
Version=1.0-2
<</MENU>>
<<BUILD>>
0
0
1
<</BUILD>>

#AFTER

[DEBREATE-0.7.10]
<<CTRL>>
Package: myapp
Version: 1.0-2
Section: utils
Maintainer: Zenaki Kurniawan <zenaki.zen.aku@gmail.com>
Priority: optional
Architecture: amd64
Depends: libc6
Description: test deploy
<</CTRL>>
<<FILES>>
1
/home/zenaki/Qt5.6.0/5.6/gcc_64/plugins/platforms/libqxcb.so* -> libqxcb.so -> /usr/lib/x86_64-linux-gnu/qt5/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.so.5* -> libQt5DBus.so.5 -> /usr/lib/x86_64-linux-gnu/qt5/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.so.5* -> libQt5XcbQpa.so.5 -> /usr/lib/x86_64-linux-gnu/qt5/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.so.5* -> libQt5Widgets.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.so.5* -> libQt5SerialPort.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.so.5* -> libQt5Gui.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.so.5* -> libQt5Core.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicuuc.so.56* -> libicuuc.so.56 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicui18n.so.56* -> libicui18n.so.56 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicudata.so.56* -> libicudata.so.56 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/QT Project/test deploy/myapp/icon.png -> icon.png -> /usr/share/pixmaps
/home/zenaki/QT Project/test deploy/myapp/myapp.sh -> myapp.sh -> /usr/local/bin
/home/zenaki/QT Project/test deploy/myapp/myapp* -> myapp -> /usr/local/bin
<</FILES>>
<<SCRIPTS>>
<<PREINST>>
0
<</PREINST>>
<<POSTINST>>
0
<</POSTINST>>
<<PRERM>>
0
<</PRERM>>
<<POSTRM>>
0
<</POSTRM>>
<</SCRIPTS>>
<<CHANGELOG>>
<<DEST>>DEFAULT<</DEST>>

<</CHANGELOG>>
<<COPYRIGHT>>
<</COPYRIGHT>>
<<MENU>>
1
Name=myapp
Version=1.0-2
Exec=bash /usr/local/bin/myapp.sh
Comment=test deploy
Icon=/usr/share/pixmaps/icon.png
Type=Application
Terminal=false
StartupNotify=false
Encoding=UTF-8
Categories=Utility;Qt;
Version=1.0-2
<</MENU>>
<<BUILD>>
0
0
1
<</BUILD>>

it's same T_T

this application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

Reinstalling the application may fix this problem.
Aborted (core dumped)

i add on my .pro

unix:QMAKE_RPATHDIR = /usr/lib/x86_64-linux-gnu/qt5
unix:QMAKE_LFLAGS += -Wl,-rpath /usr/lib/x86_64-linux-gnu/qt5

and on my main.cpp

QApplication::setLibraryPaths(QStringList("/usr/lib/x86_64-linux-gnu/qt5"));

this is my myapp.sh

 #!/bin/sh
 appname=`basename $0 | sed s,\.sh$,,`
 
 dirname=`dirname $0`
 tmp="${dirname#?}"
 
 if [ "${dirname%$tmp}" != "/" ]; then
 dirname=$PWD/$dirname
 fi
 LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/qt5:${LD_LIBRARY_PATH}
 export LD_LIBRARY_PATH
 $dirname/$appname "$@"

help me please TT_TT

hskoglund

Hi, it should work if you get the RPATH set ok, I think you need to add a comma and quote it, like this:
unix:QMAKE_LFLAGS += -Wl,-rpath,"/usr/lib/x86_64-linux-gnu/qt5"

(Same for your QMAKE_RPATHDIR)

Also what you can do, you can tell Qt where your libqxcb.so is, by using the command line switch -platformpluginpath when launching your app:

./myapp.sh -platformpluginpath /usr/lib/x86_64-linux-gnu/qt5/platforms

Edit: forgot to say: for the above -platformpluginpath switch to work, you need to throw away the quotes in your myapp.sh file, like this:

$dirname/$appname $@

or you can just edit the file:

$dirname/$appname -platformpluginpath /usr/lib/x86_64-linux-gnu/qt5/platforms "$@"

DendyGema

this problem is SOLVED ,, but maybe anybody can give me a suggestion ^_^

this is my myApp.dbp

[DEBREATE-0.7.10]
<<CTRL>>
Package: myapp
Version: 1.0
Section: utils
Maintainer: Zenaki Kurniawan <zenaki@gmail.com>
Priority: optional
Architecture: amd64

<</CTRL>>
<<FILES>>
1
/home/zenaki/Qt5.6.0/5.6/gcc_64/plugins/platforms/libqxcb.so* -> libqxcb.so -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.la -> libQt5XcbQpa.la -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.prl -> libQt5XcbQpa.prl -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.so* -> libQt5XcbQpa.so -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.so.5* -> libQt5XcbQpa.so.5 -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.so.5.6* -> libQt5XcbQpa.so.5.6 -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5XcbQpa.so.5.6.0* -> libQt5XcbQpa.so.5.6.0 -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.la -> libQt5DBus.la -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.prl -> libQt5DBus.prl -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.so* -> libQt5DBus.so -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.so.5* -> libQt5DBus.so.5 -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.so.5.6* -> libQt5DBus.so.5.6 -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5DBus.so.5.6.0* -> libQt5DBus.so.5.6.0 -> /usr/lib/x86_64-linux-gnu/platforms
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.la -> libQt5Widgets.la -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.prl -> libQt5Widgets.prl -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.so* -> libQt5Widgets.so -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.so* -> libQt5Widgets.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.so.5.6* -> libQt5Widgets.so.5.6 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Widgets.so.5.6.0* -> libQt5Widgets.so.5.6.0 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.la -> libQt5SerialPort.la -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.prl -> libQt5SerialPort.prl -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.so* -> libQt5SerialPort.so -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.so* -> libQt5SerialPort.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.so.5.6* -> libQt5SerialPort.so.5.6 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5SerialPort.so.5.6.0* -> libQt5SerialPort.so.5.6.0 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.la -> libQt5Gui.la -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.prl -> libQt5Gui.prl -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.so* -> libQt5Gui.so -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.so* -> libQt5Gui.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.so.5.6* -> libQt5Gui.so.5.6 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Gui.so.5.6.0* -> libQt5Gui.so.5.6.0 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.la -> libQt5Core.la -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.prl -> libQt5Core.prl -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.so* -> libQt5Core.so -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.so* -> libQt5Core.so.5 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.so.5.6* -> libQt5Core.so.5.6 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libQt5Core.so.5.6.0* -> libQt5Core.so.5.6.0 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicuuc.so.56.1* -> libicuuc.so.56.1 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicuuc.so.56.1* -> libicuuc.so.56 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicui18n.so.56.1* -> libicui18n.so.56.1 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicui18n.so.56.1* -> libicui18n.so.56 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicudata.so.56.1* -> libicudata.so.56.1 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/Qt5.6.0/5.6/gcc_64/lib/libicudata.so.56.1* -> libicudata.so.56 -> /usr/lib/x86_64-linux-gnu
/home/zenaki/QT Project/myapp/usr/share/pixmaps/icon.png -> icon.png -> /usr/share/pixmaps
/home/zenaki/QT Project/myapp/usr/local/bin/myapp.sh -> myapp.sh -> /usr/local/bin
/home/zenaki/QT Project/myapp/usr/local/bin/qt.conf -> qt.conf -> /usr/local/bin
/home/zenaki/QT Project//myapp/usr/local/bin/myapp* -> myapp -> /usr/local/bin
<</FILES>>
<<SCRIPTS>>
<<PREINST>>
0
<</PREINST>>
<<POSTINST>>
1
#! /bin/bash -e

ln -fs "/usr/lib/x86_64-linux-gnu/libicudata.so.56" "/usr/lib/x86_64-linux-gnu/libicudata.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libicudata.so.56.1" "/usr/lib/x86_64-linux-gnu/libicudata.so.56"

ln -fs "/usr/lib/x86_64-linux-gnu/libicui18n.so.56" "/usr/lib/x86_64-linux-gnu/libicui18n.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libicui18n.so.56.1" "/usr/lib/x86_64-linux-gnu/libicui18n.so.56"

ln -fs "/usr/lib/x86_64-linux-gnu/libicuuc.so.56" "/usr/lib/x86_64-linux-gnu/libicuuc.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libicuuc.so.56.1" "/usr/lib/x86_64-linux-gnu/libicuuc.so.56"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.6.0" "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.6"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.6" "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5" "/usr/lib/x86_64-linux-gnu/libQt5Core.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Core.so" "/usr/lib/x86_64-linux-gnu/libQt5Core"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.6.0" "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.6"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.6" "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5" "/usr/lib/x86_64-linux-gnu/libQt5Gui.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Gui.so" "/usr/lib/x86_64-linux-gnu/libQt5Gui"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5.6.0" "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5.6"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5.6" "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5" "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so" "/usr/lib/x86_64-linux-gnu/libQt5SerialPort"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.6.0" "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.6"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.6" "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5" "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so"

ln -fs "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so" "/usr/lib/x86_64-linux-gnu/libQt5Widgets"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5.6.0" "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5.6"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5.6" "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5" "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so" "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5.6.0" "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5.6"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5.6" "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5" "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so" "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa"

ln -fs "/usr/lib/x86_64-linux-gnu/platforms/libqxcb.so" "/usr/lib/x86_64-linux-gnu/platforms/libqxcb"
<</POSTINST>>
<<PRERM>>
1
#! /bin/bash -e

rm "/usr/lib/x86_64-linux-gnu/libicudata.so"

rm "/usr/lib/x86_64-linux-gnu/libicudata.so.56"

rm "/usr/lib/x86_64-linux-gnu/libicui18n.so"

rm "/usr/lib/x86_64-linux-gnu/libicui18n.so.56"

rm "/usr/lib/x86_64-linux-gnu/libicuuc.so"

rm "/usr/lib/x86_64-linux-gnu/libicuuc.so.56"

rm "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.6"

rm "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5"

rm "/usr/lib/x86_64-linux-gnu/libQt5Core.so"

rm "/usr/lib/x86_64-linux-gnu/libQt5Core"

rm "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.6"

rm "/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5"

rm "/usr/lib/x86_64-linux-gnu/libQt5Gui.so"

rm "/usr/lib/x86_64-linux-gnu/libQt5Gui"

rm "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5.6"

rm "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so.5"

rm "/usr/lib/x86_64-linux-gnu/libQt5SerialPort.so"

rm "/usr/lib/x86_64-linux-gnu/libQt5SerialPort"

rm "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.6"

rm "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5"

rm "/usr/lib/x86_64-linux-gnu/libQt5Widgets.so"

rm "/usr/lib/x86_64-linux-gnu/libQt5Widgets"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5.6"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so.5"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus.so"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5DBus"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5.6"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so.5"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa.so"

rm "/usr/lib/x86_64-linux-gnu/platforms/libQt5XcbQpa"

rm "/usr/lib/x86_64-linux-gnu/platforms/libqxcb"
<</PRERM>>
<<POSTRM>>
0
<</POSTRM>>
<</SCRIPTS>>
<<CHANGELOG>>
<<DEST>>DEFAULT<</DEST>>

<</CHANGELOG>>
<<COPYRIGHT>>
0
<</COPYRIGHT>>
<<MENU>>
1
Name=MyApp ver 1.0
Version=1.0
Exec=bash /usr/local/bin/myapp.sh
Comment=My First Application
Icon=/usr/share/pixmaps/icon.png
Type=Application
Terminal=false
StartupNotify=false
Encoding=UTF-8
Categories=Qt;
Version=1.0
<</MENU>>
<<BUILD>>
0
0
1
<</BUILD>>

this is my myapp.sh

 #!/bin/sh
 appname=`basename $0 | sed s,\.sh$,,`
 
 dirname=`dirname $0`
 tmp="${dirname#?}"
 
 if [ "${dirname%$tmp}" != "/" ]; then
 dirname=$PWD/$dirname
 fi
 LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu:${LD_LIBRARY_PATH}
 export LD_LIBRARY_PATH
 $dirname/$appname "$@"

this is my qt.conf

[Paths]
Prefix=/usr/lib/x86_64-linux-gnu
Libraries=/usr/lib/x86_64-linux-gnu
Plugins=/usr/lib/x86_64-linux-gnu

i add some code on my myapp.pro and main.cpp

[myapp.pro]
CONFIG += release
unix:QMAKE_RPATHDIR = "/usr/lib/x86_64-linux-gnu"
unix:QMAKE_LFLAGS += "-Wl,-rpath /usr/lib/x86_64-linux-gnu"

[main.cpp]
QApplication::setLibraryPaths(QStringList("/usr/lib/x86_64-linux-gnu"));

Thanks all ..

Nominate our 2022 Qt Champions!

[SOLVED] QT Deploy : This application failed to start because it could not find or load the Qt platform plugin "xcb" in "".