Error executing process > 'SLEEP_PROCESS (1)'

Caused by:
  Missing container image for process `SLEEP_PROCESS`


Command executed:

  echo "Task 1 started at: $(date)" > 1_sleep_result.txt
  
  SLEEP_DURATION=$(shuf -i 1-5 -n 1)
  
  echo "Task 1 sleeping for ${SLEEP_DURATION} minutes" >> 1_sleep_result.txt
  sleep ${SLEEP_DURATION}m
  
  echo "Task 1 completed at: $(date)" >> 1_sleep_result.txt

Command exit status:
  -

Command output:
  (empty)

Work dir:
  s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/ff/ffb120b026a278adc1ad083d63a823

Tip: you can try to figure out what's wrong by changing to the process work dir and showing the script file named `.command.sh`