Cannot run the Simple MQTT Client Example on Raspberry Pi

[isan]

I compiled QT 5.11 for Raspberry pi and built the qtmqtt module for it. But when I run simple MQTT client example I get this error on the raspberry: the process killed by the signal and the program closes, what is the reason?do I should other setting for mqtt in raspberry?

[jsulm]

@isan said in Cannot run the Simple MQTT Client Example on Raspberry Pi:

what is the reason?

Please use debugger to get stack trace

[isan]

@jsulm when I use debugger I get the error : The selected build of GDB does not support Python scripting.

I installed gdb-multiarch on my development host (Ubuntu):

sudo apt-get install gdb-multiarch

Then in the Debuggers tab of QtCreator I added a new manual entry:
Name: Multiarch GDB
Path: /usr/bin/gdb-multiarch

And in the Raspberry Pi Kit tab of QtCreator I selected Multiarch GDB as your Debugger.

Then when I use debugger I get

Process /home/pi/simplemqttclient created; pid = 15405
Could not load shared library symbols for 5 libraries, e.g. /usr/local/qt5pi/lib/libQt5Widgets.so.5.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?

Child terminated with signal = 0x4 (SIGILL)

I have libQt5Widgets.so.5.library in /usr/local/qt5pi/lib address
And I added

handle SIGILL pass nostop noprint
info sharedlibrary
set solib-search-path ./Debug/

In additional startup commands GDB debugger tap window
But the problem is still exist!

[jsulm]

@isan said in Cannot run the Simple MQTT Client Example on Raspberry Pi:

set solib-search-path ./Debug/

Since your Qt libs are in /usr/local/qt5pi/lib it should be

set solib-search-path /usr/local/qt5pi/lib

I would say.

[isan]

@jsulm said in Cannot run the Simple MQTT Client Example on Raspberry Pi:

@isan said in Cannot run the Simple MQTT Client Example on Raspberry Pi:

set solib-search-path ./Debug/

Since your Qt libs are in /usr/local/qt5pi/lib it should be

set solib-search-path /usr/local/qt5pi/lib

I would say.

I did it,
And I also did this on RPI:

echo /usr/local/qt5pi/lib | sudo tee /etc/ld.so.conf.d/qt5pi.conf
sudo ldconfig

But the problem still exists.