Error when trying to hide a sheet with setHidden(true)

[sgiacinto]

Hello, built on PHP 8.1 getting: Uncaught Error: Call to a member function setHidden() on bool

when calling:

	$ex->getSheetByName("ttemplate")->setHidden(true);
	$ex->getSheetByName("LOOKUPS")->setHidden(true);

It worked with previous versions. Any idea?

[johmue]

Hi,

seems like one of those two calls already fails and returns false (instead of a sheet instance):

$ex->getSheetByName("ttemplate");
$ex->getSheetByName("LOOKUPS");

... in the subsequent step you are then calling setHidden() on false.