faq.md

FAQ

This document contains a list of common problems and solutions encountered during ROS training:

• Ubuntu is complaining that my hard drive is running out of space
• The compiler is complaining that "virtual memory exhausted"
• CLion isn't working with ROS (If you're dual booting)

Ubuntu is complaining that my hard drive is running out of space

I screwed up the virtualbox image, and it's only 10GB (which isn't big enough). See How to increase the size of the virtualbox disk on how to resize the virtualbox image.

The compiler is complaining that virtual memory exhausted

• The VM image by default only allocate 4GB, which is not enough
  • If your computer has 8GB, give the VM 6 GB (6000 MB)
  • If your computer has 16 GB, give the VM 12 GB (12000 MB)
  • You can change the amount of memory allocated by going to Settings -> System and adjusting the memory
• This may also be caused by the hard drive running out of space. See Ubuntu is complaining that my hard drive is running out of space
• If this still doesn't work, try doing catkin_make -j2, which will reduce the amount of memory used to compile.

CLion isn't working with ROS (If you're dual booting)

• Install the Hatchery and ROS-Robot Operating System plugins
  • File -> Settings -> Plugins -> Search ROS, and click install for the two above plugins
• Restart Clion
• When Clion restarts, hit File -> Close Project
• Hit the 'X' to the right of the current project to remove it
• Click the "Import ROS Workspace" option, navigate to the catkin_ws folder, and click open