Solved [ERROR] Current hashes file cannot be determined. [XFMG&XFRM]

[Dhekhanur]

Manual file clean-up of mg and rm addons results in

[ERROR] Current hashes file cannot be determined.

Steps to reproduce:

Install new 2.3.0 RC4 upgrade to RC5 and post-upgrade
Run in CLI

Bash:

php cmd.php xf:file-clean-up XFMG
Bash:

php cmd.php xf:file-clean-up XFRM

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