I am trying to pass images as messages in a simple ROS project. I'm a complete beginner in ROS and robotics. The tutorial I'm trying to follow is here:
http://wiki.ros.org/cv_bridge/Tutorials/ConvertingBetweenROSImagesAndOpenCVImagesPython
But I can't get past adding dependencies to the package and building it. Here are the commands I have used to create my project:
mkdir image_pkg_test
cd image_pkg_test/
mkdir -p catkin_ws/src
cd catkin_ws/
catkin_make
source devel/setup.bash
cd src
catkin_create_pkg image_msg_tests sensor_msgs opencv3 cv_bridge rospy roscpp std_msgs
cd ..
catkin_make
The `catkin_make` command fails with the following message:
CMake Error at /opt/ros/kinetic/share/cv_bridge/cmake/cv_bridgeConfig.cmake:172 (find_package):
Could not find a package configuration file provided by "sensor_msgs" with
any of the following names:
sensor_msgsConfig.cmake
sensor_msgs-config.cmake
Add the installation prefix of "sensor_msgs" to CMAKE_PREFIX_PATH or set
"sensor_msgs_DIR" to a directory containing one of the above files. If
"sensor_msgs" provides a separate development package or SDK, be sure it
has been installed.
Call Stack (most recent call first):
/opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:76 (find_package)
image_msg_tests/CMakeLists.txt:10 (find_package)
-- Configuring incomplete, errors occurred!
However, `rospack find sensor_msgs` shows:
/opt/ros/kinetic/share/sensor_msgs
So this package is at least partially installed. What am I doing wrong? How can I debug the issue more effectively?
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