can't add time and duration.

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Hi,

I am basing myself on this to do some time manipulation in ros. But when I write :

ros::Time beginTime = ros::Time::now();                                                                                                                  
ros::Duration delta_t = ros::Duration(t/2);                                                                                                              
ros::Time t1 = delta_t + beginTime;                                                                                                                      
ros::Time t2 = delta_t + t1;

I get the error

error: no match for ‘operator+’ (operand types are ‘ros::Duration’ and ‘ros::Time’)
ros::Time t1 = delta_t + beginTime;

Why is that? Something has changed since the other post?

Thank you for your help!