Solving a problem - Wordpress will not generate JPG thumbnails

Please help resolve the problem.

I have a project in Wordpress. The problem is that JPG thumbnails are not generated out of the files uploaded to media library. There is the proper snippet in the [login to view URL] file:

add_theme_support( 'post-thumbnails' );

add_image_size( 'xxs_size', 100, 100);

add_image_size( 'sm_size', 300, 300);


Although it generates PNG thumbnails, JPGs are not generated. When I run Regenerate thumbnail plugin, I get "ERROR: File is not an image."

Skills: PHP, WordPress

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About the Employer:
( 3 reviews ) Szczecin, Poland

Project ID: #16933666

Awarded to:


Hej, Obstawiam na brak wsparcia dla jpeg w GD/ImageMagick - czy cokolwiek jest tam użyte do generowanie miniaturek. Pozdrawiam, Krzysiek

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