Running bridge_node gives me this:

 ****  avr_bridge's bridge_node.py   *****

Opening file  callResponse.yaml
Traceback (most recent call last):
  File "/home/roboteknik/ros/stacks/avr_bridge/scripts/bridge_node.py", line
23, in <module>
    bridge = avr_bridge.AvrBridgeNode()
  File "/home/roboteknik/ros/stacks/avr_bridge/src/avr_bridge.py", line 327,
in __init__
    self.bridge = AvrBridge()
  File "/home/roboteknik/ros/stacks/avr_bridge/src/avr_bridge.py", line 157,
in __init__
    self.header_struct = struct.Struct('<B<B<h') # packet_type topic_tag
data_length
struct.error: bad char in struct format

What's the problem now here?

Thanks,
Homer

On Wed, Feb 9, 2011 at 7:34 PM, Homer Manalo <homer.manalo@roboteknik.com>wrote:

> OK, I just compiled it successfully now.
> Added these lines to String.cpp:
>     String::~String()
>     {}
>
> Program:   14632 bytes (44.7% Full)
>>
> I didn't know this would go almost half-full just for a hello world.
>
> -Homer
>
>
> On Wed, Feb 9, 2011 at 7:09 PM, Homer Manalo <homer.manalo@roboteknik.com>wrote:
>
>> I found the culprit with the error: ‘string’ in namespace ‘ROS’ does not
>> name a type.
>> The ros_string.h has the ff. lines:
>>   #ifndef STRING_H_
>>   #define STRING_H_
>> Should be:
>>   #ifndef ROS_STRING_H_
>>   #define ROS_STRING_H_
>> The filename on the top of the comment is string.h as well. It also solved
>> the error: ‘class std_msgs::String’ has no member named ‘data’. It seems
>> that this is also the reason for the previous error I got regarding
>> std_msgs::String. I don't have to reorder the #include files anymore.
>>
>> I,ve got a couple more errors this time:
>>   char Ros::getTopicTag(char *topic) {
>>     ../avrRos/ros_generated.cpp:6: error: prototype for ‘char
>> Ros::getTopicTag(char*)’ does not match any in class ‘Ros’
>>
>>   char getTopicTag(char const *topic);
>>   ../avrRos/Ros.h:132: error: candidate is: char Ros::getTopicTag(const
>> char*)
>>
>> I replaced the autogenerated ros_generated.cpp with this:
>>
>>   /* This file was autogenerated as a part of the avr_bridge pkg
>>    * avr_bridge was written by Adam Stambler and Phillip Quiza of
>>    * Rutgers University.
>>    */
>>   #include "Ros.h"
>>   #include "string.h"  //added manually for strcmp
>>   char Ros::getTopicTag(char const *topic) {  //manually added const to
>> resolve above errors
>>       if (!strcmp(topic, "call"))
>>           return 0;
>>       if (!strcmp(topic, "response"))
>>           return 1;
>>       return 0;  //manually added semicolon(;)
>>   }
>>   Ros ros("callResponse", 2);
>>
>> I'm not sure if this is the right solution but the errors are gone now,
>> except one. It's a make error, here is the console output:
>>
>> **** Build of configuration Release for project avr_bridgeHelloWorld ****
>>
>> make all
>> Building target: avr_bridgeHelloWorld.elf
>> Invoking: AVR C++ Linker
>> avr-gcc --cref -s -Os -o"avr_bridgeHelloWorld.elf"  ./avrRos_user.o
>> ./main.o  ./avrRos/Ros.o ./avrRos/String.o ./avrRos/cc_support.o
>> ./avrRos/ros_generated.o ./avrRos/ros_string.o   -lArduinoProMini5VCore -lm
>> -Wl,-Map,avr_bridgeHelloWorld.map,--cref
>> -L/home/roboteknik/eclipse/ArduinoCores -mmcu=atmega328p
>> ./main.o: In function `__static_initialization_and_destruction_0(int,
>> int)':
>> main.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x2c):
>> undefined reference to `std_msgs::String::~String()'
>> main.cpp:(.text._Z41__static_initialization_and_destruction_0ii+0x34):
>> undefined reference to `std_msgs::String::~String()'
>> make: *** [avr_bridgeHelloWorld.elf] Error 1
>>
>> I'm not sure how to solve this error.
>>
>>
>>
>> On Wed, Feb 9, 2011 at 2:51 PM, Homer Manalo <homer.manalo@roboteknik.com
>> > wrote:
>>
>>> 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!
>>>>>> --
>>>>>> View this message in context:
>>>>>> http://ros-users.122217.n3.nabble.com/AVR-and-ROS-tp2200563p2222791.html
>>>>>> Sent from the ROS-Users mailing list archive at Nabble.com.
>>>>>> _______________________________________________
>>>>>> ros-users mailing list
>>>>>> ros-users@code.ros.org
>>>>>> https://code.ros.org/mailman/listinfo/ros-users
>>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> ros-users mailing list
>>>>> ros-users@code.ros.org
>>>>> https://code.ros.org/mailman/listinfo/ros-users
>>>>>
>>>>>
>>>>
>>>
>>
>