error on lunching robot_blockly

[ivanalexo]

Hi all,
I have this errors when I try to lunch robot_blockly I installed yaml and rospkg but the error persists
Traceback (most recent call last): File "/home/rtf_drone/blockly_ws/install_isolated/lib/robot_blockly/scripts/robot_blockly_backend.py", line 35, in <module> import rospy File "/opt/ros/kinetic/lib/python2.7/dist-packages/rospy/__init__.py", line 47, in <module> from std_msgs.msg import Header File "/opt/ros/kinetic/lib/python2.7/dist-packages/std_msgs/msg/__init__.py", line 1, in <module> from ._Bool import * File "/opt/ros/kinetic/lib/python2.7/dist-packages/std_msgs/msg/_Bool.py", line 5, in <module> import genpy File "/opt/ros/kinetic/lib/python2.7/dist-packages/genpy/__init__.py", line 34, in <module> from . message import Message, SerializationError, DeserializationError, MessageException, struct_I File "/opt/ros/kinetic/lib/python2.7/dist-packages/genpy/message.py", line 44, in <module> import yaml ImportError: No module named 'yaml' [robot_blockly_backend-2] process has died [pid 3387, exit code 1, cmd /home/rtf_drone/blockly_ws/install_isolated/lib/robot_blockly/scripts/robot_blockly_backend.py __name:=robot_blockly_backend __log:=/home/rtf_drone/.ros/log/50868b66-3ec3-11e8-82a0-266ce4d495a9/robot_blockly_backend-2.log]. log file: /home/rtf_drone/.ros/log/50868b66-3ec3-11e8-82a0-266ce4d495a9/robot_blockly_backend-2*.log Traceback (most recent call last): File "/home/rtf_drone/blockly_ws/install_isolated/lib/robot_blockly/scripts/pywebserver.py", line 6, in <module> from rospkg import RosPack ImportError: No module named 'rospkg' [robot_blockly_webserver-3] process has died [pid 3388, exit code 1, cmd /home/rtf_drone/blockly_ws/install_isolated/lib/robot_blockly/scripts/pywebserver.py __name:=robot_blockly_webserver __log:=/home/rtf_drone/.ros/log/50868b66-3ec3-11e8-82a0-266ce4d495a9/robot_blockly_webserver-3.log]. log file: /home/rtf_drone/.ros/log/50868b66-3ec3-11e8-82a0-266ce4d495a9/robot_blockly_webserver-3*.log