Connecting to remote server failed:

K-Str

Hello,
after a recommended update to :
Qt Creator 4.5.0
Based on Qt 5.10.0 (GCC 5.3.1 20160406 (Red Hat 5.3.1-6), 64 bit)
Built on Dec 4 2017 04:11:21
From revision fcea6ceba6
I can not use QT creator for developing C++ programms for Raspberry pi3.

When I try to upload my application for debugging I get the following error:
Connecting to remote server failed:
tcp:raspberrypi:10000: No route to host.
I have no idea whats happens. I can connect ro the raspberry pi 3 using
ssh -l pi raspberrypi
also
ssh -l pi raspberrypi works
Thanks for your help.

SGaist

Hi,

If you start Qt Creator from the command line, do you have any information printed on it when you try to connect to your Pi ?

K-Str

Hi SGaist,
thanks for your answer.
I get this output:
No tool chain set up in kit "Raspberrypi" for "C".
No tool chain set up in kit "Raspberrypi" for "C++".
No tool chain set up in kit "Raspberrypi" for "C".
No tool chain set up in kit "Raspberrypi" for "C++".
SOFT ASSERT: "isValid()" in file /work/build/qt-creator/src/libs/utils/port.h, line 53
Empty filename passed to function
Please what does this mean?
I think the last two lines show the problem.

SGaist

That you have Kit name Raspberrypi that seems to not have a toolchain configured for it.

K-Str

Hi SGaist,
it's crazy! It worked before. But some has been lost.
Ok now I executed with an older toolchain. but it doesn't work neiteher.
/home/kurt/Qt/Tools/QtCreator/bin/qtcreator
SOFT ASSERT: "isValid()" in file /work/build/qt-creator/src/libs/utils/port.h, line 53
Empty filename passed to function
Where is this file located?

SGaist

Did you update your system recently ?

What version of OpenSSL do you have installed ?

K-Str

Hello SGaist,
I use on UBUNTU
OpenSSL 1.0.2g 1 Mar 2016
on the raspberry
OpenSSL 1.0.1t 3 May 2016

SGaist

What version of Ubuntu ?

OpenSSL looks fine.

K-Str

the ubuntu version is
4.13.0-32-generic
the release is
LSB Version: core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:printing-9.20160110ubuntu0.2-amd64:printing-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial

K-Str

Hello,
I found on the raspberry runs posibly GDB-multiarch?
pi@raspberrypi:~ $ ps -ef |grep gdb
pi 1265 1247 0 15:22 ? 00:00:00 gdbserver --multi :10000
What about the QT-Creator? I haven't found a similar one on my ubuntu PC.

SGaist

It's not multi arch. It means that gdbserver is started without an application to start or a process connect to. You can then connect to it and decide whether it should attach to a running process or run something.

K-Str

I think qt is quite corrupted.
Maybe I have to install it again because it's a very good tool.
Does somebody know a good tutorial to install qt (open source) for c++ and remote debugging for raspberry? Maybe on a windows PC or ubuntu.
I'm very frustrated!!!
Thanks in advanc.

SGaist

The no route to suggest that it can resolve the raspberrypi name to a suitable address. Did you try to use the IP directly ?

K-Str

No, I didn't, but I will try it.
Thanks.
Kurt

K-Str

Hello SGaist,
thank you very much!
it works!!!
I have to check my router why it finds no remote device.
Kurt

SGaist

Maybe also your /etc/hosts file.