No module named cffirmware

[willgraham345]

I've been trying to use parts of your webots workspace for a new simulation, which will hopefully let us simulate crazyflies for a robotics study in my lab. I keep getting these issues when trying to run the simple_mapper within webots:

[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [webots-1]: process started with pid [170615]
[INFO] [driver-2]: process started with pid [170617]
[INFO] [robot_state_publisher-3]: process started with pid [170620]
[INFO] [simple_mapper-4]: process started with pid [170623]
[driver-2] Cannot connect to Webots instance, retrying in 0 second...
[robot_state_publisher-3] [INFO] [1668041269.763159731] [robot_state_publisher]: got segment
[driver-2] Cannot connect to Webots instance on socket "/tmp/webots-1234/ipc/Crazyflie/extern", retrying in 1 second...
[driver-2] Cannot connect to Webots instance on socket "/tmp/webots-1234/ipc/Crazyflie/extern", retrying in 2 seconds...
[robot_state_publisher-3] Link body had 0 children
[robot_state_publisher-3] Link camera had 0 children
[robot_state_publisher-3] Link gps had 0 children
[robot_state_publisher-3] Link gyro had 0 children
[robot_state_publisher-3] Link inertial unit had 0 children
[robot_state_publisher-3] Link range_back had 0 children
[robot_state_publisher-3] Link range_front had 0 children
[robot_state_publisher-3] Link range_left had 0 children
[robot_state_publisher-3] Link range_right had 0 children
[robot_state_publisher-3] Link solid_0 had 0 children
[robot_state_publisher-3] Link solid_1 had 0 children
[robot_state_publisher-3] Link solid_2 had 0 children
[robot_state_publisher-3] Link solid had 0 children
[robot_state_publisher-3] [INFO] [1668041275.781476478] [robot_state_publisher]: got segment base_link
[robot_state_publisher-3] [INFO] [1668041275.781500427] [robot_state_publisher]: got segment body
[robot_state_publisher-3] [INFO] [1668041275.781504190] [robot_state_publisher]: got segment camera
[robot_state_publisher-3] [INFO] [1668041275.781507166] [robot_state_publisher]: got segment gps
[robot_state_publisher-3] [INFO] [1668041275.781510166] [robot_state_publisher]: got segment gyro
[robot_state_publisher-3] [INFO] [1668041275.781513081] [robot_state_publisher]: got segment inertial unit
[robot_state_publisher-3] [INFO] [1668041275.781516119] [robot_state_publisher]: got segment range_back
[robot_state_publisher-3] [INFO] [1668041275.781519107] [robot_state_publisher]: got segment range_front
[robot_state_publisher-3] [INFO] [1668041275.781522049] [robot_state_publisher]: got segment range_left
[robot_state_publisher-3] [INFO] [1668041275.781524948] [robot_state_publisher]: got segment range_right
[robot_state_publisher-3] [INFO] [1668041275.781527859] [robot_state_publisher]: got segment solid
[robot_state_publisher-3] [INFO] [1668041275.781530836] [robot_state_publisher]: got segment solid_0
[robot_state_publisher-3] [INFO] [1668041275.781533767] [robot_state_publisher]: got segment solid_1
[robot_state_publisher-3] [INFO] [1668041275.781536604] [robot_state_publisher]: got segment solid_2
[driver-2] Traceback (most recent call last):
[driver-2] File "/home/$USER/tests/install/crazyflie_ros2_simulation/lib/python3.8/site-packages/crazyflie_ros2_simulation/crazyflie_webots_driver.py", line 17, in
[driver-2] import cffirmware
[driver-2] ModuleNotFoundError: No module named 'cffirmware'
[driver-2] terminate called after throwing an instance of 'std::runtime_error'
[driver-2] what(): The crazyflie_ros2_simulation.crazyflie_webots_driver.CrazyflieWebotsDriver plugin cannot be found (C++ or Python).
[ERROR] [driver-2]: process has died [pid 170617, exit code -6, cmd '/opt/ros/galactic/lib/webots_ros2_driver/driver --ros-args --params-file /tmp/launch_params_9y19erxc'].

I'm somewhat new to ROS (and ROS2), but I loved your work and was hoping to see if I could make any progress with it. Thanks for the cool idea and code either way!!

[willgraham345]

I should add that I am referencing the path to the crazyflie-firmware directory, which includes a cffirmware.py which should be the python bindings. If that doesn't help, I'm happy to provide any other information!