Apptainer Troubleshooting
Common Apptainer module and container issues on NowWhat.
Use this page for short diagnostic entries.
Container Does Not Start
Check that you loaded the correct module and that you are running on a compute node when required.
Package Installation Fails
Confirm whether the package should be installed in a persistent overlay, a user library, or a project-specific environment.
GPU Is Not Visible
Confirm that the job has a GPU allocation and that the GPU-enabled container was launched with the expected Apptainer options.