lps 71 Posting Pro in Training

Good day,
I am having problem with the wordpress add_action function. currently, I tried the code provided in wordpress.org forum without success:

$comment_ID="15";
function echo_comment_id( $comment_ID ) 
{
   echo "I just received $comment_ID";
}
add_action( 'comment_id_not_found', 'echo_comment_id', 10, 1 );

When I run the code, $comment_ID does not appear. Any help will be appreciated.

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