Just to say I got yesterday similar errors with another theme and it was fixed. As reference: MDL-23208

This was the change applied to fix it: http://cvs.moodle.org/moodle/theme/formal_white/config.php?r1=1.17&r2=1.18

Ciao

By the way, if you are stuck and cannot log into your Moodle 2.0 site because of that error, simply remove the standardold folder from your moodle/theme folder.
It will use the standard default theme.
Joseph

I thought that standardold was there for reference only?

Hmmm.... it can't just sit there broken though.

Yes it can. If it's not inevitably going to end up in the 2.0 core, why spend time fixing it?

I was more tending to... please delete it then If it confuses me it will confuse others and it looks bad when you get horrible errors.

Ha! Let's see what Sam says. I've always ignored it.

Sam - is it safe to now remove standardold from the theme directory?

Hi guys,

I have fixed up the errors that were occurring within the standardold theme.
In this case it was a misplaced block region check.

As for whether the standardold theme should still be in core, yes I think it should.
The idea behind it is that it is exactly the same as the standard theme except it uses the a table for layout rather than the floating divs.
The main advantage to this is that this theme will work on legacy or sub standard browsers and avoids some of the ugly bugs you may experience with those browsers, particularly in regards to overflowing content.

Cheers
Sam

I find it sad to discover, almost two years down the line, that standardold/layout/frontpage.php wasn't fixed at the same time as standardold/layout/general.php.
If it had been, then I would not be linking MDL-36978 as a duplicate of MDL-23226 for practically the same reason, namely a wrongly labelled block region, which if triggered throws the same error message, albeit worded differently.