first wordpress custom post type

Ok here goes…

I’m new to php and wordpress been working on it for about 4 months and taught myself quite a bit…

I am trying to develop a new theme so far I have done everything correctly without errors…

However i am now trying to create a new custom post type names portfolio using the tutorial on the below page:

https://teamtreehouse.com/blog/create-your-first-wordpress-custom-post-type

i did everything as explained in the tutorial and added 2 extra fields “Image Url” and “Month” my final code looks like this in my dev site:

/*******************************
 Custom Post Type - Portfolio
********************************/

add_action('init', 'portfolio_register');

function portfolio_register() {

	$labels = array(
		'name' => _x('My Portfolio', 'post type general name'),
		'singular_name' => _x('Portfolio Item', 'post type singular name'),
		'add_new' => _x('Add New', 'portfolio item'),
		'add_new_item' => __('Add New Portfolio Item'),
		'edit_item' => __('Edit Portfolio Item'),
		'new_item' => __('New Portfolio Item'),
		'view_item' => __('View Portfolio Item'),
		'search_items' => __('Search Portfolio'),
		'not_found' =>  __('Nothing found'),
		'not_found_in_trash' => __('Nothing found in Trash'),
		'parent_item_colon' => ''
	);

	$args = array(
		'labels' => $labels,
		'public' => true,
		'publicly_queryable' => true,
		'show_ui' => true,
		'query_var' => true,
		'menu_icon' => get_stylesheet_directory_uri() . '/images/portfolio/portfolio.png',
		'rewrite' => true,
		'capability_type' => 'post',
		'hierarchical' => false,
		'menu_position' => null,
		'supports' => array('title','editor','thumbnail')
	  ); 

	register_post_type( 'portfolio' , $args );

    flush_rewrite_rules();
}

register_taxonomy("Skills", array("portfolio"), array("hierarchical" => true, "label" => "Skills", "singular_label" => "Skill", "rewrite" => true));

add_action("admin_init", "admin_init");

function admin_init(){
  add_meta_box("year_completed-meta", "Year Completed", "year_completed", "portfolio", "side", "low");
  add_meta_box("month_completed-meta", "Month Completed", "month_completed", "portfolio", "side", "low");
  add_meta_box("image_url-meta", "Image Url", "image_url", "portfolio", "normal", "low");
  add_meta_box("credits_meta", "Design & Build Credits", "credits_meta", "portfolio", "normal", "low");
}

function year_completed(){
  global $post;
  $custom = get_post_custom($post->ID);
  $year_completed = $custom["year_completed"][0];
  ?>
  <label>Year:</label>
  <input name="year_completed" value="<?php echo $year_completed; ?>" />
  <?php
}

function month_completed(){
  global $post;
  $custom = get_post_custom($post->ID);
  $month_completed = $custom["month_completed"][0];
  ?>
  <label>Month:</label>
  <input name="month_completed" value="<?php echo $month_completed; ?>" />
  <?php
}

function image_url(){
  global $post;
  $custom = get_post_custom($post->ID);
  $image_url = $custom["image_url"][0];
  ?>
  <p><label>Image Url:</label><br />
  <textarea cols="150" rows="1" name="image_url"><?php echo $image_url; ?></textarea></p>
  <?php
}

function credits_meta() {
  global $post;
  $custom = get_post_custom($post->ID);
  $designers = $custom["designers"][0];
  $developers = $custom["developers"][0];
  $producers = $custom["producers"][0];
  ?>
  <p><label>Designed By:</label><br />
  <textarea cols="150" rows="2" name="designers"><?php echo $designers; ?></textarea></p>
  <p><label>Built By:</label><br />
  <textarea cols="150" rows="2" name="developers"><?php echo $developers; ?></textarea></p>
  <p><label>Produced By:</label><br />
  <textarea cols="150" rows="2" name="producers"><?php echo $producers; ?></textarea></p>
  <?php
}

add_action('save_post', 'save_details');

function save_details(){
  global $post;

  update_post_meta($post->ID, "year_completed", $_POST["year_completed"]);
  update_post_meta($post->ID, "month_completed", $_POST["month_completed"]);
  update_post_meta($post->ID, "image_url", $_POST["image_url"]);
  update_post_meta($post->ID, "designers", $_POST["designers"]);
  update_post_meta($post->ID, "developers", $_POST["developers"]);
  update_post_meta($post->ID, "producers", $_POST["producers"]);
}

add_action("manage_posts_custom_column",  "portfolio_custom_columns");
add_filter("manage_edit-portfolio_columns", "portfolio_edit_columns");

function portfolio_edit_columns($columns){
  $columns = array(
    "cb" => "<input type='checkbox' />",
    "title" => "Portfolio Title",
    "description" => "Description",
    "year" => "Year Completed",
    "month" => "Month Completed",
    "skills" => "Skills",
  );

  return $columns;
}

function portfolio_custom_columns($column){
  global $post;

  switch ($column) {
    case "description":
      the_excerpt();
      break;
    case "year":
      $custom = get_post_custom();
      echo $custom["year_completed"][0];
      break;
    case "month":
      $custom = get_post_custom();
      echo $custom["month_completed"][0];
      break;
    case "skills":
      echo get_the_term_list($post->ID, 'Skills', '', ', ','');
      break;
  }
}

When creating a new portfolio item, the portfolio item is not displayed when visiting the permalink…

I then enabled the wp debug and got the below error:

Notice: wp_enqueue_script was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or init hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in C:\Sites\site\wp-includes\functions.php on line 2825

On the same subject my breadcrums is also not working now…

I get the below error for breadcrumbs:

Notice: Undefined offset: 0 in C:\Sites\site\wp-content\themes\theme\functions.php on line 834 Catchable fatal error: Object of class WP_Error could not be converted to string in C:\Sites\site\wp-content\themes\theme\functions.php on line 835

The functions.php breadcrumbs code is refered to is:

} elseif ( is_single() ) {
      $cat = get_the_category(); $cat = $cat[0];
      echo '<li>' .get_category_parents($cat, FALSE, '<li>'); //fails here this is line 835
      the_title(); echo' <strong><span style="font-size : 10px;">* YOU ARE CURRENTLY HERE!</span></strong></li>';
      echo $currentAfter;

Please someone help!! I am going insane here…