Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.Start your free trial
Can't find the error in my code.
When I click the button the header does not change color.
I'm getting this error: Uncaught TypeError: Cannot read property 'addEventListener' of null
Here is my workspace: https://w.trhou.se/aj7xyt9tjn
Armin Kadic16,242 Points
You wrote 'my button' instead of "myButton" in the second line. You also wrote "stlye" instead of "style" in the event listener.