Troubleshooting

Troubleshooting techniques for different problems that you might run into while building and running SMACC2.

Build Errors

• Error!! when build package

• Adding manually compiled SMACC2 packages files to install (/opt/foxy) folder

• Header dependency missing

• Redundant test dependencies in package.xml of moveit2z_client

Runtime Errors

• SmaccAsyncClientBehavior onExit() freezes when cancelGoal() is called on the attached action client

• Why is client behavior’s OnExit always called twice when exiting a state

• Service request failing

• Graceful shutdown on smacc2 reference libraries

• State machine process cannot quit with Ctrl-C (SIGINT)

• State machine blocks with AsyncCb cannot return and busy waiting std::future

• Support for multiple CBs subscribed to single client

• Transition back to previous state using history

General Questions

• How to use Action events

• Is there a way to access the event from a state that caused the transition to the current state?

• States, Topics & Data Structures

• Multithread executor example