Wordpress: how to add the featured image to a page !?

[dil_bert]

dear experts, dear user, 

currently working on a setup of a wordpress with theme twentyseventeen 

the question is: how to add the featured image to a page !? 

see the screen: <img src="https://imgur.com/oMfAl76"/>

look forward to hear from you 

regards  say

[dil_bert]

hello again,  untill now i did not fix the issues,

here a description that fits most: https://wordpress.org/support/topic/post-page-not-showing-featured-image/

question: I have installed the theme but on post page, none of the post showing the featured images, just showing on the home page…
Can anyone help to resolve this problem so post page can also show the related featured image?

answer: I managed to bodge it by adding this to (my child theme’s) single.php

`
 

<?php
if ( has_post_thumbnail() ) { // check if the post has a Post Thumbnail assigned to it.
the_post_thumbnail( 'full' );
}
?>
(Insert after <?php while ( have_posts() ) : the_post(); ?>)
<img src="wherever" />

and  a link: https://www.wpbeginner.com/beginners-guide/how-to-add-featured-image-or-post-thumbnails-in-wordpress/

note: i did not have applied the code to a child-theme yet. 

but i deactivated all the plugins - step by step. - without any success. 
note: i have upgreaded the server from PHP-Version 5.6 to Version 7.2xy

at the moment i struggle with some issues on the page: 

`Warning: ini_set(): open_basedir restriction in effect. File(/tmp/wp-errors.log) is not within the allowed path(s): (/sites) in /sites/www.my-site.com/wp-includes/load.php on line 345`

condluding question: is it possible that this can cause the issues?!? with the featured image!? 

look forward to hear from you 

regards 

[aniketkumar]

To set the feature image in wordpress website there is an option on the side of the post.

[zuanedu]

click to edit the post or page you want to assign an image to.

Click on “Set Featured Image” .