General help

I think I might have figured out why it's not working.
(although I may well be wrong)

I think it is because you have renamed the module to "evaluation" instead of "feedback". It all depends where you changed the name of the module.
Did you change the record for feedback in the "modules" table? If so, change it back and see if it then works.
If you'd like to change the name of a module that appears to a user, then you only need to edit it in the language files (assuming it is written according to Moodle's rules)

That's correct; the two require_once lines are found at 1163 and 1464

Luke

How about at the top of your course\view.php?

Thanks Perito

Where exactly do you insert require_once($CFG->libdir.'/locklib.php');? I have tried different places but it still gives me the same fatal error.

Luke

I have added S. Pirotos code here in the course/lib.php file, which makes it work on my installation:

///Activity Locking ///
}
require_once($CFG->libdir.'/locklib.php');
if (($locks = islocked($mod)) and (array_search("closed", $locks) or isteacher($course->id))) {
$linkcss = " class=\"dimmed\" ";
echo "<img src=\"$icon\"".
" height=16 width=16 alt=\"$mod->modfullname\">".
" <font size=2><a title=\"$mod->modfullname\" $linkcss $extra".
" href=\"$CFG->wwwroot/mod/$mod->modname/view.php?id=$mod->id\">$instancename (".get_string("locked", "lock").")</a></font>";

} else { // Normal activity
$linkcss = $mod->visible ? "" : " class=\"dimmed\" ";
echo '<img src="'.$icon.'"'.
' class="activityicon" alt="'.$mod->modfullname.'" />'.
' <a title="'.$mod->modfullname.'" '.$linkcss.' '.$extra.
' href="'.$CFG->wwwroot.'/mod/'.$mod->modname.'/view.php?id='.$mod->id.'">'.
$instancename.'</a>';
}

if ($locks) {
if (isset($course->showactivitytracking) and $course->showactivitytracking == 1) {
foreach ($locks as $lock => $state) {
if ($state == "open") {
echo "&nbsp;<img src=\"$CFG->pixpath/t/open.gif\" height=\"11\" width=\"11\"".
" title=\"".get_string("predecessorcomplete", "lock").": ".urldecode($modinfo[$lock]->name)."\"".
" alt=\"".get_string("predecessorcomplete", "lock").": ".urldecode($modinfo[$lock]->name)."\">";
} else {
echo "&nbsp;<img src=\"$CFG->pixpath/t/closed.gif\" height=\"11\" width=\"11\"".
" title=\"".get_string("predecessornotcomplete", "lock").": ".urldecode($modinfo[$lock]->name)."\"".
" alt=\"".get_string("predecessornotcomplete", "lock").": ".urldecode($modinfo[$lock]->name)."\">";
}
}
}
}
///End Activity Locking ///