A Ticket has been raised for this; I’ve put it here to give others the solution.
When using CListMenu you get:
YiiBase::include(CBaseMenu.php) [<a href=‘yiibase.include’>yiibase.include</a>]:failed to open stream: No such file or directory
Fix is to add the line:
Yii::import('zii.widgets.menus.CBaseMenu');
before the CListMenu class declaration
Having solved that the next issue is:
Fatal error: Call to protected method CHtml::renderattributes() from context ‘CListMenu’ in C:\…\zii\widgets\menus\CListMenu.php on line 53
Fix is to change the line in renderMenu() from
echo '<ul'.CHtml::renderAttributes($htmlOptions).'>';
to
echo Chtml::openTag('ul', $htmlOptions);