Troubleshooting tips: KB

[KB] Rough notes for errors that have been run into

After updating to new version, and it isn't working (why is it not working? What is showing up?)

//I am going to clean this all up

• reinstall the Kinect:

1. go inside your ROS workspace (i.e. usually /home/$USER/workspace/ros/catkin/src)

git clone https://github.com/OpenPTrack/libfreenect2.git;

cd libfreenect2 git checkout iai_kinect2

cd depends/

3. sudo apt-get install -y git cmake cmake-curses-gui libXmu-dev libXi-dev libgl1-mesa-dev dos2unix xorg-dev libglu1-mesa-dev libtool automake libudev-dev libgtk2.0-dev pkg-config libjpeg-turbo8-dev libturbojpeg libglewmx-dev --reinstall

./install_ubuntu.sh sudo ln -s /usr/lib/x86_64-linux-gnu/libturbojpeg.so.0.0.0 /usr/lib/x86_64-linux-gnu/libturbojpeg.so

cd ../examples/protonect/ cmake . make -j4 sudo make install

< go inside your ROS workspace (i.e. usually /home/$USER/workspace/ros/catkin/src) >

git clone https://github.com/OpenPTrack/iai_kinect2.git cd iai_kinect2

git checkout development

echo '# ATTR{product}=="Kinect2"

SUBSYSTEM=="usb", ATTR{idVendor}=="045e", ATTR{idProduct}=="02c4", MODE="0666" SUBSYSTEM=="usb", ATTR{idVendor}=="045e", ATTR{idProduct}=="02d8", MODE="0666" SUBSYSTEM=="usb", ATTR{idVendor}=="045e", ATTR{idProduct}=="02d9", MODE="0666"' > ~/90-kinect2.rules sudo mv ~/90-kinect2.rules /etc/udev/rules.d/90-kinect2.rules

< go inside your ROS workspace before src (i.e. usually /home/$USER/workspace/ros/catkin) > catkin_make < reboot > < disconnect and reconnect the Kienct v2 to the USB3.0 port of the computer > < wait a couple of seconds >

sudo apt-get install -y ocl-icd-opencl-dev --reinstall

Machines Crash - Completely turn off

• try resetting power strip

OS GUI freezes

• Likely to be due to the Nvidia driver crashing
• sudo service light dm restart

ntpq offset is unreasonable

• sudo service ntp restart

//the following are when we try to run detection

Error message - [pcl::PCDReader::readHeader] Could not find file '/tmp/background_<sensor_id>

• background subtraction enabled - this is ok

Error message - Set process thread priority to: 19

• Unplug USB and replug to that respective machine

Error message: No valid frame. Move the camera to a better position. OR [ERROR'[longnumber.longnumber]:CV_bridge exception: Unrecognized image encoding

• not enough points on the floor //make sure to add the notes about the issue that came up from the Gnocchi email thread