Error libmamba Could not open lockfile

MFiX
#1

I received this error message while installing MFix on my computer.
error libmamba Could not open lockfile ‘C:\ProgramData\miniforge3\pkgs\cache\cache.lock’
Any idea on what to do?

#2

Try:

C:>  mamba clean --locks

Source:
https://stackoverflow.com/questions/77698814/mamba-error-while-creating-a-new-virtual-environment-could-not-open-lock-file