OS build errors

Course Support ROS2 Basics in 5 Days Humble (C++)
1

I am getting the following error when building a package. Any idea? It seems the OS is running out of memeory!

[76.549s] ERROR:colcon.colcon_core.event_reactor:Exception in event handler extension ‘event_log’: [Errno 12] Cannot allocate memory
Traceback (most recent call last):
File “/usr/lib/python3/dist-packages/colcon_core/event_reactor.py”, line 78, in _notify_observers
retval = observer(event)
File “/usr/lib/python3/dist-packages/colcon_output/event_handler/event_log.py”, line 50, in call
self._file_handle.flush()
OSError: [Errno 12] Cannot allocate memory

2

Hello @z4ziad ,

Is this happening in the academy? Or on your local computer?

3

It was happening in academy or course virtual machine.

4

Apologies for that. Is it still happening? If so, please let us know because then it could mean there could be something about your code that’s causing that.

5

Thanks for your reply. I had to reduce the number of executable files in my CMakeLists.txt for Unit 4 to avoid the error. I think the compiler was running out of memory, although I am clear why this would happen.

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6

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