Problem using Qt creator with ROS

QtCreator

asked 2013-03-18 04:42:20 -0500

DavidLavy
139 ●15 ●16 ●25

updated 2014-01-28 17:15:46 -0500

ngrennan
1 ●1 ●1

HI,

I'm trying to use Qt creator to edit my ROS files, I have read a few advices about how to do it. I'll try to explain what I've done and the problems I have concisely:

Create a normal ROS pkg using roscreate-pkg (e.g. $roscreate-pkg test roscpp)
Given that Qt has some enviromental issues, I've launched Qt creator from command using:

$ sudo -s

$ qtcreator
Now I have the welcome page, and I click on Open Project and go to where my project is located in this case: /home/david/fuerte_workspace/sandbox/test and I select the CMakeLists.txt
Now I have this image:

Build Location

I cliked on continue (just accepted the default option), and led me here:

Run Cmake

I clicked on Run CMake, and this is what I got:

-- Configuring incomplete, errors occurred! CMake Error at /opt/ros/fuerte/share/ros/core/rosbuild/private.cmake:99 (message): [rosbuild] rospack found package "test" at "", but the current directory is "/home/david/fuerte_workspace/sandbox/test". You should double-check your ROS_PACKAGE_PATH to ensure that packages are found in the correct precedence order. Call Stack (most recent call first): /opt/ros/fuerte/share/ros/core/rosbuild/public.cmake:177 (_rosbuild_check_package_location) CMakeLists.txt:12 (rosbuild_init)

[rosbuild] Building package test -- Found PythonInterp: /usr/bin/python2.7 -- Detecting CXX compiler ABI info - done -- Detecting CXX compiler ABI info -- Check for working CXX compiler: /usr/bin/c++ -- works -- Check for working CXX compiler: /usr/bin/c++ -- Detecting C compiler ABI info - done -- Detecting C compiler ABI info -- Check for working C compiler: /usr/bin/gcc -- works -- Check for working C compiler: /usr/bin/gcc -- The CXX compiler identification is GNU -- The C compiler identification is GNU

Error

I don't have a lot of experience with this, I will appreciate an easy-to-understand explanation if possible.

Thanks in advance!!

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answered 2013-03-18 05:26:09 -0500

dornhege

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Your ROS environment is not initialized. This is probably because you start from sudo -s which usually puts you in a root shell instead of a user shell.

I would highly recommend not running your GUI as root.

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Thank you! I did initialized my ROS environment ... But when I access root, appeareantly I have to do it again.

DavidLavy ( 2013-03-18 10:15:30 -0500 )edit

And the reason I ran Qt as root is because it has an issue when you don't. In this post http://www.mikrocontroller.net/topic/277821 (you have to translate it to English) explains what happens when you run QtCreator normally. I had the same issue, and by far is the only solution I could find

DavidLavy ( 2013-03-18 10:17:31 -0500 )edit

You are fixing the problem at the wrong end. According the the thread you linked to the problem is still caused by sudo or sudo -s. Serial ports can be configured to be read as your user (adduser <USER> dialout) and as to the error messages: There should be a solution to that.

dornhege ( 2013-03-18 11:30:26 -0500 )edit

What would be the right way? I don't really understand the whole idea of environment issues and why using sudo -s is still wrong. Is the 'adduser <USER> dialout' a command should I execute, and what exactly it does?

DavidLavy ( 2013-03-19 10:12:16 -0500 )edit

sudo -s will basically run the program as root instead of your user. Besides security issues, your whole user setup isn't there. adduser <YOUR_USER> dialout puts you in the group dialout. Usually serialports are accessible then. There also is probably some GUI for user management.

dornhege ( 2013-03-20 01:49:02 -0500 )edit

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answered 2013-03-18 06:42:53 -0500