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2017-05-16 19:34:28 -0500 | marked best answer | Compiling new package causing roscore command not found I'm trying to compile a new package with catkin_make_isolated but after visibly successful installation my I receive roscore and catkin_make, etc command not found. My only option is to reload from an earlier backup to restore my ROS. The steps I'm following:
The .bashrc does refer to the install_isolated/setup.bash, still no roscore or catkin_make, etc |
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2014-04-20 06:56:47 -0500 | marked best answer | Libopencv undefined reference to 'header' I'm trying to compile ROS on a Raspberry Pi (Raspbian) following these Debian installation instructions and got to the point to compile ROS, which fails at compiling opencv with I googled to try to figure out what header file might be missing, but unfortunately didn't get anywhere. I hope somebody will have an idea about at least the directions to go from here. Thanks |
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2014-03-15 12:31:13 -0500 | asked a question | uvc_camera two webcams exit code -6 Hi, I'm trying to run two webcams with uvc_camera, but it throws exit code -6 and one always fails. I know that there might be USB bandwidth issues, but I don't think that this would be the case here because: a. the error shows even if the lowest resolution and frame rate is used (320x240, frame rate: 5) b. the exit code is -6, while I believe USB bandwidth would throw exit rate 28 The odd thing that I can't find the log file what uvc_camera is referring to. Each camera works on its own. When trying to start both the first starts but the second doesn't. Details are below.
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2014-03-15 06:04:52 -0500 | commented answer | ROS remote master: can see topics but no data I'm sorry, but I had the same issue and ROS_IP was set properly, it didn't make a difference. What made a difference is the /etc/hosts file on the remote PC having the hostname and ip of the master PC. |
2014-03-15 06:03:28 -0500 | commented answer | ROS remote master: can see topics but no data I had the same issue. All ROS_IP, ROS_MASTER_URI settings were fine, I did see the topics but when subscribed no message came through. It was because the node running roscore had a hostname and that hostname was not added to the /etc/host file or the remote PC. I have added the hostname and the topics immediately started to show their data on the remote PC. |
2014-03-12 12:55:27 -0500 | answered a question | How to make the libuvc_ros package Sorry, not in front on my computer, but I believe uvc_camera uses camera1394, where you can set brightness, see details at (look for brightness under parameters section): http://wiki.ros.org/camera1394 If you are not sure how to use parameters, the best to use a launch file. Example http://answers.ros.org/question/9786/... |
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2014-03-12 11:37:46 -0500 | commented question | Undefined reference when compiling camera_info_manager Thanks, that helped - see my own answer below. |
2014-03-12 11:34:59 -0500 | answered a question | Undefined reference when compiling camera_info_manager Just managed to solve the issue after @jbinney asking me to add message() to the cmakelists file. As soon as I have added that the compile did run through fine. It looks the issue was that the first time when I tried to compile camera_info_manager then some of the prerequisites were missing, so I went and installed them including camera_calibration_parsers and came back to re-try but the error was still there like camera_calibration_parsers wouldn't be installed. As soon as I modified the cmakelists file the compile did find it. So the issue simply was that the dependencies are not listing camera_calibration_parsers, so when it gets added you need to trigger the recreation of the make file. Blah. |
2014-03-12 10:35:05 -0500 | commented question | How to make the libuvc_ros package You should download it from git https://github.com/ktossell/libuvc_ros.git into your src folder and then from the catkin folder run catkin_make_isolated --pkg libuvc_camer --install |
2014-03-12 10:28:50 -0500 | asked a question | Undefined reference when compiling camera_info_manager I'm compiling camera_info_manager on Ubuntu 13.10 (armhf) and receiving undefined reference to camera_calibration_parsers::readCalibration. See details below: What is funny that I remember that I had the same issue when I was compiling for Raspberry Pi and resolved it somehow, but it seems I can't remember how. Any idea is appreciated. Edit: camera_calibration_parses package is installed, that was the first thing I checked Edit2: just realized that last time I raised a ticket in github against camera_info_manager, but then the issue got resolved on its own, so I just reopen the ticket. See make verbose output on the link: https://github.com/ros-perception/ima... |
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2014-03-03 05:51:26 -0500 | commented answer | Roslaunch cannot find launch file Thanks, I have copied the launch file to ~/ros_catkin_ws/install_isolated/share/uvc_camera/ and now it works. Thanks! |
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2014-03-02 11:41:12 -0500 | commented answer | Roslaunch cannot find launch file Thanks, I filed the bug. Do you know where can I manually place the .launch files for to find it until the CMakeLists.txt's bug doesn't get resolved? |
2014-03-02 04:13:48 -0500 | asked a question | Roslaunch cannot find launch file I have installed uvc_camera package by running: Everything went fine, no errors. But when I'm trying to launch a launch file from this package it says it cannot find it: The stereo_node.launch is still in the src folder: Is it normal that after installation the .launch file is still in the /src folder? If no, then would this be an installation issue? If yes, then why roslaunch cannot find it? |