Action client crashes - "Goal handle is not tracking the goal result"

[skucheria]

Bug report

Required Info:

• Operating System:
  • Ubuntu 18.04
• Installation type:
  • Debian packages
• Version or commit hash:
  • 0.7.2
• DDS implementation:
  • fastrtps
• Client library (if applicable):
  • rclcpp

Steps to reproduce issue

In one terminal start the server:

ros2 run examples_rclcpp_minimal_action_server action_server_not_composable 

In another terminal start the client:

ros2 run examples_rclcpp_minimal_action_client action_client_not_composable 

Expected behavior

Client should print out success or failure message

Actual behavior

Client crashes

[INFO] [minimal_action_client]: Sending goal
terminate called after throwing an instance of 'rclcpp_action::exceptions::UnawareGoalHandleError'  
what():  Goal handle is not tracking the goal result.

[clalancette]

@skucheria Heh, we raced. I'm going to close this as a dup of #243 , which I just opened :).