mpm --admin --require=@listfile with non-existing listfile

[BaWue]

I accidentally tried to call
mpm --admin --require=@listfile
and had a typo in the name of listfile.
So a non-existing listfile was referenced.

This resulted in the following error messages:
Sorry, but "MiKTeX Package Manager" did not succeed.
log4cxx: No appender could be found for logger (mpmcli).
log4cxx: Please initialize the log4cxx system properly.

This error message was quite misleading to me as it didn't point to a non-existing listfile.
Before I even noticed it was just a simple typo and also found no help googling for log4cxx errors, I went for a complete unistallation an reinstallation of MiKTeX, of course to no avail.

A more specific error message in the case of a non-existing listfile would be really helpful.

miktex-report.txt