Ok now I have sorted out about the std_msgs error by ordering the #include lines and object declarations:

  #include <WProgram.h>
  #include <stdio.h>

  #include "avrRos/String.h"
  std_msgs::String call_msg;
  std_msgs::String response_msg;

  #include "avrRos/Ros.h"

But I still got some errors here:

  sprintf(response_msg.data.getRawString(), "You sent : %s", call_msg.data.getRawString());
    ../main.cpp:35: error: ‘class std_msgs::String’ has no member named ‘data’
    ../main.cpp:35: error: ‘class std_msgs::String’ has no member named ‘data’

  call_msg.data.setMaxLength(30);
  response_msg.data.setMaxLength(60);
    ../main.cpp:50: error: ‘class std_msgs::String’ has no member named ‘data’
    ../main.cpp:51: error: ‘class std_msgs::String’ has no member named ‘data’

  ROS::string data;
    ../avrRos/String.h:18: error: ‘string’ in namespace ‘ROS’ does not name a type

  ROS::string name;
    ../avrRos/Ros.h:117: error: ‘string’ in namespace ‘ROS’ does not name a type



On Tue, Feb 8, 2011 at 4:41 PM, Homer Manalo <homer.manalo@roboteknik.com> wrote:
Hello, I'm following the hello world tutorial and getting build errors particularly with these two lines:

  std_msgs::String call_msg;
  std_msgs::String response_msg;

  ../main.cpp:21: error: ‘std_msgs’ has not been declared
  ../main.cpp:21: error: expected constructor, destructor, or type conversion before ‘call_msg’
  ../main.cpp:22: error: ‘std_msgs’ has not been declared
  ../main.cpp:22: error: expected constructor, destructor, or type conversion before ‘response_msg’

Other errors are just because of the two variables not being declared.



On Mon, Jan 10, 2011 at 4:10 AM, Adam Stambler <adasta@gmail.com> wrote:
Hi

Configuring eclipse can be a bit tricky.  This tutorial was the most straight forward explanation:

http://www.arduino.cc/playground/Code/Eclipse

If you are still having trouble, let me know and I will write up an explanation on the ROS site.

-Adam


On Sun, Jan 9, 2011 at 2:36 PM, airthimble <joseph.st.amand@mines.sdsmt.edu> wrote:

I have been trying to use this package in order to communicate with a
Seeduino. I tried following the avr-bridge tutorial but had trouble with it.
I typically put together a make file for a project and just use a text
editor. I have no trouble using eclipse, I just cannot figure out how to
configure it. There does not seem to be a well-made tutorial for configuring
eclipse in Ubuntu 11.04.

If anyone would be able to give me a push in the right direction it would be
much appreciated!

Thanks!
--
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