bootstrap slider WordPress Dynamic Content ACF Custom Post Type loop Query Posts or gallery. Credit to Doug for this fantastic solution http://www.lanexa.net/2013/03/update-bootstrap-carousel-wordpress-dynamic-content/

carousel-start.js

    	    $(document).ready(function() {
    		$('.carousel').carousel();
    		$(".carousel-indicators li:first").addClass("active");
    		$(".carousel-inner .item:first").addClass("active");
    	    });

dynamic-content-slider-controls.php

<?php
        $count = count(get_field('slider_background'));
        // begin $count conditions
        if ($count >= 2) {
            ?>
            <!-- Controls -->
            <a class="left carousel-control" href="homeSlider" role="button" data-slide="prev">
                <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
                <span class="sr-only">Previous</span>
            </a>
            <a class="right carousel-control" href="#homeSlider" role="button" data-slide="next">
                <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
                <span class="sr-only">Next</span>
            </a>  
            <?php
        } elseif ($count == 1) {
            //No more then one slide = no navigation 
        }
        ?>

dynamic-content-slider.php

  <?php //Wordpress Loop Example
	    $number = 0;
	    query_posts('post_type=slider_panels&posts_per_page=20&order=ASC');
	    if (have_posts()):
		?>
		<div id="homeSlider" class="carousel slide" data-ride="carousel">
		    <!-- Indicators -->
		    <ol class="carousel-indicators">
			<?php while (have_posts()): the_post(); ?>
	    		<li data-target="#homeSlider" data-slide-to="<?php echo $number++; ?>"></li>
			<?php endwhile; ?>
		    </ol>
		    <!-- Carousel items -->
		    <div class="carousel-inner">
			<?php while (have_posts()): the_post(); ?>
	    		<div class="item">
	    		<!-- your slider content -->
	    		</div>
		<?php endwhile; ?>
		    <?php endif;
		    wp_reset_query(); ?>
    	    </div> 
    	</div>
    	
    	
    	  <!--ACF Repeater Example (no indicators)-->
		<div id="homeSlider" class="carousel slide" data-ride="carousel">
		   <!-- Carousel items -->
		     <div class="carousel-inner">
                <?php while (the_repeater_field('slider_background')): ?> 
                    <div class="item" style="background-image:url('<?php the_sub_field('slider_background_image') ?>');">
                    </div>
                <?php endwhile; ?>
            </div>
		   
    	    </div> 
    
    <!--Get_posts-->
            <?php
        $number = 0;
        $args = array('post_type' => 'specials', 'posts_per_page' => -1,);
        $myposts = get_posts($args);
        ?>
        <div id="car-slider" class="carousel slide" data-ride="carousel">
            <!-- Carousel items -->
            <div class="carousel-inner">
                    <?php foreach ($myposts as $post) : setup_postdata($post); ?>
                    <div class="item">
                     //your stuff
                    </div><!--close item-->
                    <?php endforeach; ?>

            </div><!--Close inner-->
            <!-- Indicators -->
            <div class="indicators">
            <ol class="carousel-indicators clearfix">
                <?php foreach ($myposts as $post) : setup_postdata($post); ?>
                    <li data-target="#car-slider" data-slide-to="<?php echo $number++; ?>"></li>
            <?php endforeach; ?>
            </ol> 
            </div>
<?php wp_reset_postdata(); ?>
    

This should be using WPquery instead.