Multiple categories in a Package... Why is this not working?

$category = $modx->newObject('modCategory');
$category->set('id',1);
$category->set('category', 'Flexibility');

$category2 = $modx->newObject('modCategory');
$category2->set('id',2);
$category2->set('category', 'Site options');

$category3 = $modx->newObject('modCategory');
$category3->set('id',3);
$category3->set('category', 'Page options');

$category4 = $modx->newObject('modCategory');
$category4->set('id',4);
$category4->set('category', 'Footer');

$category5 = $modx->newObject('modCategory');
$category5->set('id',5);
$category5->set('category', 'Footer content');

$category6 = $modx->newObject('modCategory');
$category6->set('id',6);
$category6->set('category', 'Page content');

$category7 = $modx->newObject('modCategory');
$category7->set('id',7);
$category7->set('category', 'Template');

/* add tvs */
$tvs1 = include $sources['data'].'transport.tvs1.php';
if (is_array($tvs1)) {
    $category2->addMany($tvs1,'TemplateVars');
}

$tvs2 = include $sources['data'].'transport.tvs2.php';
if (is_array($tvs2)) {
    $category3->addMany($tvs2,'TemplateVars');
}

$tvs4 = include $sources['data'].'transport.tvs4.php';
if (is_array($tvs4)) {
    $category5->addMany($tvs4,'TemplateVars');
}

$tvs5 = include $sources['data'].'transport.tvs5.php';
if (is_array($tvs5)) {
    $category6->addMany($tvs5,'TemplateVars');
}

$tvs2 = array();

$tvs2[11]= $modx->newObject('modTemplateVar');
$tvs2[11]->fromArray(array(
    'id' => 11,
    'name' => 'optional_contactform',
    'caption' => 'Contactform',
    'description' => 'Do you want a contactform on this page?',
	'category' => 'Page options',
    'type' => 'option',
	'elements' => 'yes==yes||no==no',
    'display' => 'default',
    'locked' => 0,
    'rank' => 4,
    'default_text' => 'no',
    'display_params' => '',
	'properties' => array(),
),'',true,true);

$tvs2[12]= $modx->newObject('modTemplateVar');
$tvs2[12]->fromArray(array(
    'id' => 12,
    'name' => 'optional_gallery',
    'caption' => 'Gallery',
    'description' => 'Do you want a picture gallery on this page?',
	'category' => 'Page options',
    'type' => 'option',
	'elements' => 'yes==yes||no==no',
    'display' => 'default',
    'locked' => 0,
    'rank' => 3,
    'default_text' => 'no',
    'display_params' => '',
	'properties' => array(),
),'',true,true);

$tvs2[13]= $modx->newObject('modTemplateVar');
$tvs2[13]->fromArray(array(
    'id' => 13,
    'name' => 'optional_slider',
    'caption' => 'Slider',
    'description' => 'Do you want a slider on this page?',
	'category' => 'Page options',
    'type' => 'option',
	'elements' => 'yes==yes||no==no',
    'display' => 'default',
    'locked' => 0,
    'rank' => 2,
    'default_text' => 'no',
    'display_params' => '',
	'properties' => array(),
),'',true,true);

$tvs2[19]= $modx->newObject('modTemplateVar');
$tvs2[19]->fromArray(array(
    'id' => 19,
    'name' => 'page_boxes',
    'caption' => 'Sub-content boxes',
    'description' => 'How many sub-content boxes do you want on this page?',
	'category' => 'Page options',
    'type' => 'option',
	'elements' => '0==0||2==2||3==3||4==4',
    'display' => 'default',
    'locked' => 0,
    'rank' => 1,
    'default_text' => '0',
    'display_params' => '',
	'properties' => array(),
),'',true,true);

return $tvs2;