Fatal error: Only variables can be passed by reference

Well then I'll try upgrading.

(Marked as 2.9, but it's actually 2.11, someone needs to update the tracker info)

I just upgraded to 2.11 and still have this problem.

Line 77 says:

form_error($form['value'], t('Invalid date format.'));

And I'm assuming it's referring to $form['value'], so... anyone have any ideas? This code is inside the date validation function, and it's running this code because it wants to print an Invalid date format to me, but I've actually inputted a correct date format for PHP's strtotime (I used this as a test date/time: 2010-06-01 12:00:00, and clearly it's not working because it's getting to the "Invalid date format" code point).

Ideas?

I figured out some more details that might be pertinent to this bug. It seems it only happens when you disable the "Optional" parameter (using an exposed date filter), and then try to set the required (default) "Value" parameter. Even if you type in a correct date, it doesn't validate properly, and thus, the default value isn't stored properly, so visiting the actual views page for the first time throws up an error because it can't get the default value.

Basically, I made this error go away by making the exposed date filter "optional", thereby bypassing the default "Value" option, which may be the source of the problem.

Oh, yeah, sorry, I'm referring to "Node: Post Date" specifically, though other date filters may have this problem as well, I'm not sure. My issue's been fixed, though, like I said, I just enabled "Optional", so the "Value" parameter wasn't needed (which seemed to be the culprit).