ambiguous use of header file

edit

Hi,

I want to use a package::header as usual like this:

void callbackBB(package_msgs::header msgs_x)
{
}

but the compiler indicates the headerfile is ambiguous and should be used like

header()

or

header(const package_msgs::header<#0> &)

Does this mean this header can't be instantiated ? The writer doesn't give support so can't ask. Thanks.

Code sample:

void  callback_BB_Twist(amigo_msgs::arm_links msgs_ls_t)

Error by Eclipse

Description
'amigo_msgs::arm_links' is ambiguous '
Candidates are:
arm_links()
arm_links(const amigo_msgs::arm_links<#0> &)

Compiler error:

error: ‘amigo_msgs::arm_links’ is not a type

A full minimal example:

#include "amigo_msgs/arm_links.h"
class ImageP
{
    void callbackBB(amigo_msgs::armlinks msgs_x)
    {
    }
    ImageP(ros::nodehandle* n)
    {
         ls_sub = n->subscribe("<topic>", &ImageP::callbackBB, this);
    }
    void run()
    {
    }
};
int main()
{
    ros::init(argc,argv,"imagedo");
    ros::Rate loop_rate(30);
    while(ros::ok())
    {
        imagep.run();
        ros::spinOnce();
        loop_rate.sleep;
     }
}