Problem with top menu

[pagelad]

Sorry if this has already been mentioned,

 

Ive installed the edugeek package on my xampp system, when i load it up i see the following message in the top right of the screen

 

Warning: Parameter 1 to modMainMenuHelper::buildXML() expected to be a reference, value given in C:\xampp\htdocs\site\libraries\joomla\cache\handler\callback.php on line 99

 

When i look in the menu properties in the administrator section i get this

 

Warning: Parameter 4 to JHTMLMenu::treerecurse() expected to be a reference, value given in C:\xampp\htdocs\site\libraries\joomla\html\html.php on line 87

 

Warning: array_slice() expects parameter 1 to be array, null given in C:\xampp\htdocs\site\administrator\components\com_menus\models\list.php on line 143

 

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\site\administrator\components\com_menus\models\list.php on line 147

 

Any ideas what ive done wrong?

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\site\administrator\components\com_menus\views\list\view.php on line 65

[pagelad]

In fact looks like ive got errors all over the place

 

Warning: Parameter 1 to JHTMLGrid::access() expected to be a reference, value given in C:\xampp\htdocs\site\libraries\joomla\html\html.php on line 87

 

Warning: Parameter 1 to JHTMLGrid::checkedOut() expected to be a reference, value given in C:\xampp\htdocs\site\libraries\joomla\html\html.php on line 87

 

Warning: Parameter 1 to JHTMLGrid::published() expected to be a reference, value given in C:\xampp\htdocs\site\libraries\joomla\html\html.php on line 87

 

Warning: Parameter 1 to JHTMLGrid::access() expected to be a reference, value given in C:\xampp\htdocs\site\libraries\joomla\html\html.php on line 87