Child Theme is not available to activate

Hello all,

I feel like such a dumbass, but i can’t get WordPress to create an available child theme template.

I used the Codex for how to create a Child Theme. I have a theme called 123ecology, so i created the map 123eclogy-child. In the child folder i created the style.css with the code:

/*
Theme Name:     123ecology-child
Theme URI:      -
Description:    Template voor OK Energy
Author:         Robin Adrianus
Author URI:     http://www.robinadrianus.com
Template:       123ecology
Version:        1.0
*/

@import url("../wp-content/themes/123ecology/style.css");

When i look at available themes, the child theme doesn’t show. What am i missing?

I also have a warning at rule 1 saying:
Imported styles sheets are not checked in direct input and file upload modes (level 0) Don’t know if that has anything to do with why it doesn’t work.

If i need to put more information i’m happy to give it ofcourse. Hope someone can help me 🙂