kompose -f <file convert doesn't pick up the compose file

kompose -f <file convert doesn't pick up the compose file: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). I was trying out kompose for the first time and followed the examples in the user guide. The docs show the -f / --file flag used like this: