Error about micro_ros_subscriber_twist

[drinkBr]

Hi, When I ran micro_ros_subscriber_twist.ino, I encountered the following error. Please advise. In this case, 'String_sub.ino' is my file name.

C:\AppData\Local\Temp\arduino\sketches\B0E779D746D417ABD8374C376587FBDB\sketch\String_sub.ino.cpp.o: In function `set_microros_transports':
C:\Documents\Arduino\libraries\micro_ros_arduino\src/micro_ros_arduino.h:40: undefined reference to `rmw_uros_set_custom_transport'
C:\AppData\Local\Temp\arduino\sketches\B0E779D746D417ABD8374C376587FBDB\sketch\String_sub.ino.cpp.o: In function `setup':
F:\Arduino\String_sub/String_sub.ino:45: undefined reference to `rcutils_get_default_allocator'
F:\Arduino\String_sub/String_sub.ino:48: undefined reference to `rclc_support_init'
F:\Arduino\String_sub/String_sub.ino:51: undefined reference to `rclc_node_init_default'
F:\Arduino\String_sub/String_sub.ino:54: undefined reference to `rosidl_typesupport_c__get_message_type_support_handle__geometry_msgs__msg__Twist'
F:\Arduino\String_sub/String_sub.ino:54: undefined reference to `rclc_subscription_init_default'
F:\Arduino\String_sub/String_sub.ino:61: undefined reference to `rclc_executor_init'
F:\Arduino\String_sub/String_sub.ino:62: undefined reference to `rclc_executor_add_subscription'
C:~\AppData\Local\Temp\arduino\sketches\B0E779D746D417ABD8374C376587FBDB\sketch\String_sub.ino.cpp.o: In function `loop':
F:\Arduino\String_sub/String_sub.ino:68: undefined reference to `rclc_executor_spin_some'
collect2.exe: error: ld returned 1 exit status

exit status 1

Compilation error: exit status 1

[hippo5329]

Look like include/library issues.

You should use a native Ubuntu 22.04 PC instead of Windows PC. Use platformio/vscode, which is much better than Arduino IDE. Esp32 is a good micro-ros controller, which costs only 1/10 of an Arduino Due. If you want to build mobile robot, you may follow my wiki.

https://github.com/hippo5329/linorobot2_hardware/wiki