[htc-m7] ""flasher --method=adb sideload"" fails systematically

I dont know where it's coming from :

python3.10 pmbootstrap.py -t 1000000 install --android-recovery-zip --recovery-install-partition=data
python3.10 pmbootstrap.py flasher --method=adb sideload
==> [15:16:37] ERROR: The recovery zip has not been generated yet, please run 'pmbootstrap install' with the '--android-recovery-zip' parameter first!

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