Display posts based on CPT category Name - wordpress

Question

I have post type named 'service'. It has two categories 'Left' & 'Right' I wish to display all posts of 'Left' category. Here's my code
<?php
$args = array (
'post_type' => 'service',
'post_status' => 'publish',
'order' => 'ASC',
'category_name' => 'Left',
'posts_per_page'=>-1
);
$posts = new WP_Query( $args );
if ( $posts->have_posts() ) {
while ( $posts->have_posts() ) {
$posts->the_post();
//$image11 = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' );
?>
<li><i class="fa fa-file-text"></i> <?php the_title(); ?></li>
<?php } } wp_reset_postdata(); ?>
The above code returns nothing.

Answer 1

Please try with below:
On the $args Array please use the Left category ID insted of category_ID on "category" column.
<?php
$args = array (
'post_type' => 'service',
'post_status' => 'publish',
'order' => 'ASC',
'category' => 'category_ID',
'posts_per_page' =>-1
);
$posts = new WP_Query( $args );
if ( $posts->have_posts() ) {
while ( $posts->have_posts() ) {
$posts->the_post();
//$image11 = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' );
?>
<li>
<a href="<?php the_permalink(); ?>">
<i class="fa fa-file-text"></i>
<?php the_title(); ?>
</a>
</li>
<?php
}
}
wp_reset_postdata();
?>

Answer 2

Try this with the category name
$args = array(
'post_type' => 'post',
'tax_query' => array(
'relation' => 'AND',
array(
'taxonomy' => 'category', //name of texonomy
'field' => 'slug',
'terms' => 'Left'
)
)
);
$my_query = new WP_Query( $args );
if( $my_query->have_posts() ) {
while ($my_query->have_posts()) : $my_query->the_post();
//your code
endwhile;
endif;