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i create a node in order to publish topic, so i choose std_msgs::Float64 as a type of message sent by my publisher. then i wrote those lines to publish a random message :
std_msgs::Float64 test;
test.data=0.500785;
pub.publish(test);
and that gives me an error : 'test' does not name a type
and : pub.publish(test) does not name a type.
any ideas to solve that? PS: i'm coding in c++ can anyone help me?
You need the relevant include to be able to use this message:
#include <std_msgs/Float32.h>
You need to setupstd_msgs as a dependency of your package if you want that to work:
http://wiki.ros.org/catkin/Tutorials/...
Please provide a simple, full example ROS package demonstrating your problem if you want more help (edit your first message)
I think you may put this in your .h file, try put them at ,cpp file and compile again.
Asked: 2018-06-27 07:33:31 -0600
Seen: 2,532 times
Last updated: Jun 27 '18
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Hi! I ran into the same problem, so how did you solve this problem?