If you enable [[plugins/filecheck]] *and* [[plugins/attachment]], then IkiWiki (e.g. via wrapper) will throw a lot of the following errors on stderr

    Use of uninitialized value $size in division (/) at /.../filecheck.pm line 73.

73 is

```
sub humansize ($) {
	my $size=shift;

	foreach my $unit (reverse sort { $units{$a} <=> $units{$b} || $b cmp $a } keys %units) {
		if ($size / $units{$unit} > 0.25) {
			return (int($size / $units{$unit} * 10)/10).$unit;
		}
	}
	return $size; # near zero, or negative
}
```

Disabling *attachment* is sufficient to stop this. *&mdash; [[Jon]] 2023-09-06*