Notice: Undefined index

Get these errors after a clean install on D7.12:

Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Notice: Undefined index: links in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_diff() [function.array-diff]: Argument #1 is not an array in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php).
Warning: array_values() expects parameter 1 to be array, null given in mothership_preprocess() (line 385 of /sites/all/themes/mothership/mothership/template.php
Notice: Undefined variable: rdf_header in include() (line 1 of /sites/all/themes/mothership/mothership/templates/html.tpl.php).
Notice: Undefined variable: rdf_profile in include() (line 7 of/sites/all/themes/mothership/mothership/templates/html.tpl.php).