/home/cxh/ros2_ws/src/mqtt_report/src/mqtt_report.cpp: In function ‘void Msg_Handler(mc::msg::CanFrame_ >::SharedPtr)’: /home/cxh/ros2_ws/src/mqtt_report/src/mqtt_report.cpp:35:10: error: jump to case label 35 | case 0x18FF0121: | ^~~~~~~~~~ /home/cxh/ros2_ws/src/mqtt_report/src/mqtt_report.cpp:31:18: note:  crosses initialization of ‘uint16_t motorspeed’ 31 | uint16_t motorspeed = msg->data[4] << 8 | msg->data[5]; | ^~~~~~~~~~ gmake[2]: *** [CMakeFiles/mqtt_report_node.dir/build.make:76: CMakeFiles/mqtt_report_node.dir/src/mqtt_report.cpp.o] Error 1 gmake[1]: *** [CMakeFiles/Makefile2:137: CMakeFiles/mqtt_report_node.dir/all] Error 2 gmake: *** [Makefile:146: all] Error 2