View source for ROS1

===Build===
<font color='red'>'''Won't build'''</font>
 <font size='1'>Build Configuration:
 BB_VERSION           = "1.37.0"
 BUILD_SYS            = "x86_64-linux"
 NATIVELSBSTRING      = "universal"
 TARGET_SYS           = "arm-poky-linux-gnueabi"
 MACHINE              = "elphel393"
 DISTRO               = "poky"
 DISTRO_VERSION       = "2.4+snapshot-20181204"
 TUNE_FEATURES        = "arm armv7a vfp neon cortexa9"
 TARGET_FPU           = "softfp"
 meta                 
 meta-poky            
 meta-yocto-bsp       = "HEAD:72867393fe2004ab9f0ee23eb09a975c82938b9e"
 meta-ezynq           = "rocko:046de13c06cc248b725cb7b9928f35d4a369b50f"
 meta-elphel393       = "rocko:0cea9b9b8776f0fe725316f1be1501396c95feb4"
 meta-ros             = "HEAD:72068b17e4192b51e09c8dc633805a35edac8701"
 meta-xilinx-bsp      = "HEAD:a18947c20dba2c0c38db8bde1ad4684995df4bbd"
 meta-oe              
 meta-python          
 meta-networking      
 meta-webserver       = "HEAD:34aa4c3202b427f59f843dc43a4e1afda4f81d13"</font>

* Error 1:
** ROS_USE_PYTHON3 = "yes"
** IMAGE_INSTALL += "roslaunch"

 <font size='1'>NOTE: Resolving any missing task queue dependencies
 ERROR: Nothing RPROVIDES 'python3-pycrypto' (but /home/oleg/GIT/elphel393_rocko_clean_install/meta/meta-ros/recipes-devtools/python/python3-paramiko_1.16.0.bb RDEPENDS on or otherwise requires it)
 NOTE: Runtime target 'python3-pycrypto' is unbuildable, removing...
 Missing or unbuildable dependency chain was: ['python3-pycrypto']
 NOTE: Runtime target 'python3-paramiko' is unbuildable, removing...
 Missing or unbuildable dependency chain was: ['python3-paramiko', 'python3-pycrypto']
 NOTE: Runtime target 'roslaunch' is unbuildable, removing...
 Missing or unbuildable dependency chain was: ['roslaunch', 'python3-paramiko', 'python3-pycrypto']
 ERROR: Required build target 'core-image-elphel393' has no buildable providers.
 Missing or unbuildable dependency chain was: ['core-image-elphel393', 'roslaunch', 'python3-paramiko', 'python3-pycrypto']</font>

* Successful build:
** IMAGE_INSTALL += "roslaunch"

 <font size='1'>NOTE: Resolving any missing task queue dependencies
 ERROR: Nothing RPROVIDES 'python3-pycrypto' (but /home/oleg/GIT/elphel393_rocko_clean_install/meta/meta-ros/recipes-devtools/python/python3-paramiko_1.16.0.bb RDEPENDS on or otherwise requires it)
 NOTE: Runtime target 'python3-pycrypto' is unbuildable, removing...
 Missing or unbuildable dependency chain was: ['python3-pycrypto']
 NOTE: Runtime target 'python3-paramiko' is unbuildable, removing...
 Missing or unbuildable dependency chain was: ['python3-paramiko', 'python3-pycrypto']
 NOTE: Runtime target 'roslaunch' is unbuildable, removing...
 Missing or unbuildable dependency chain was: ['roslaunch', 'python3-paramiko', 'python3-pycrypto']
 ERROR: Required build target 'core-image-elphel393' has no buildable providers.
 Missing or unbuildable dependency chain was: ['core-image-elphel393', 'roslaunch', 'python3-paramiko', 'python3-pycrypto']</font>


* Error 2:
** <font color='red'>Seems like '''rostopic''' causes:</font>
 <font size='1'>ERROR: python-imaging-1.1.7-r5 do_package_qa: QA Issue: python-imaging: The compile log indicates that host include and/or library paths were used.
          Please check the log '/home/oleg/GIT/elphel393_rocko_clean_install/poky/build/tmp/work/cortexa9-neon-poky-linux-gnueabi/python-imaging/1.1.7-r5/temp/log.do_compile' for more information. [compile- host-path]
 ERROR: python-imaging-1.1.7-r5 do_package_qa: QA run found fatal errors. Please consider fixing them.
 ERROR: python-imaging-1.1.7-r5 do_package_qa: Function failed: do_package_qa
 ERROR: Logfile of failure stored in: /home/oleg/GIT/elphel393_rocko_clean_install/poky/build/tmp/work/cortexa9-neon-poky-linux-gnueabi/python-imaging/1.1.7-r5/temp/log.do_package_qa.19425
 ERROR: Task (/home/oleg/GIT/elphel393_rocko_clean_install/meta/meta-openembedded/meta-python/recipes-devtools/python/python-imaging_1.1.7.bb:do_package_qa) failed with exit code '1'</font>
 
 potential links: 
  https://github.com/intel-aero/meta-intel-aero/issues/81
  https://github.com/bmwcarit/meta-ros/issues/395

 removed python3-imaging from '''rosbag''' - everything builds but then not really working.

 with '''ROS_USE_PYTHON3 = "yes"''' stopped at finding an appropriate '''python-pycrypto''' lib

===Work===
* <font color='red'>'''Won't work'''</font>

** There's no '''rosrun''' (does not exist?)

** SSH session 1:
*** Add to /etc/hosts:
 127.0.0.1	elphel393.localdomain		elphel393
*** Export vars:
 export ROS_ROOT=/opt/ros
 export ROS_DISTRO=indigo
 export ROS_PACKAGE_PATH=/opt/ros/indigo/share
 export PATH=$PATH:/opt/ros/indigo/bin
 export LD_LIBRARY_PATH=/opt/ros/indigo/lib
 export PYTHONPATH=/opt/ros/indigo/lib/python2.7/site-packages
 export ROS_MASTER_URI=http://localhost:11311
 export CMAKE_PREFIX_PATH=/opt/ros/indigo
 touch /opt/ros/indigo/.catkin
*** Roscore
 roscore


** SSH session 2:
 root@elphel393:~# rosnode list
  <font size='1'>/rosout</font>
 root@elphel393:~# rospack list
  <font size='1'>cpp_common /opt/ros/indigo/share/cpp_common
  genmsg /opt/ros/indigo/share/genmsg
  genpy /opt/ros/indigo/share/genpy
  rosbag /opt/ros/indigo/share/rosbag
  rosbag_storage /opt/ros/indigo/share/rosbag_storage
  rosclean /opt/ros/indigo/share/rosclean
  rosconsole /opt/ros/indigo/share/rosconsole
  roscpp /opt/ros/indigo/share/roscpp
  roscpp_serialization /opt/ros/indigo/share/roscpp_serialization
  roscpp_tutorials /opt/ros/indigo/share/roscpp_tutorials
  rosgraph /opt/ros/indigo/share/rosgraph
  rosgraph_msgs /opt/ros/indigo/share/rosgraph_msgs
  roslaunch /opt/ros/indigo/share/roslaunch
  roslib /opt/ros/indigo/share/roslib
  roslz4 /opt/ros/indigo/share/roslz4
  rosmaster /opt/ros/indigo/share/rosmaster
  rosnode /opt/ros/indigo/share/rosnode
  rosout /opt/ros/indigo/share/rosout
  rospack /opt/ros/indigo/share/rospack
  rosparam /opt/ros/indigo/share/rosparam
  rospy /opt/ros/indigo/share/rospy
  rospy_tutorials /opt/ros/indigo/share/rospy_tutorials
  rostime /opt/ros/indigo/share/rostime
  rostopic /opt/ros/indigo/share/rostopic
  std_msgs /opt/ros/indigo/share/std_msgs 
  topic_tools /opt/ros/indigo/share/topic_tools
  xmlrpcpp /opt/ros/indigo/share/xmlrpcpp</font>