bbPress.org

add_filter( 'bbp_get_user_profile_url', 'my_custom_author_link' );
function my_custom_author_link( $user_id ){
$author_info = get_userdata( 1 );
$author_name = $author_info->user_nicename; 
return get_author_posts_url( false, $author_name );
}

is working properly.

but when i change the input of
$author_info = get_userdata( 1 );
to
$author_info = get_userdata( $user_id );

I get:

Notice: Trying to get property of non-object in C:\xampp\htdocs\wordpress\wp-content\themes\WoW_Public_Vent_Theme\functions.php on line 274

and it does not work :(;

Soo close.