Unit 3 - Lesson 22 - Error in Program - Help - CSD

CS Discoveries Unit and Lesson Discussion
1

My student is working on her game in CSD, Unit 3, Lesson 22. She keeps getting an error - ERROR: Line: 39: TypeError: Cannot read property ‘copy’ of null.

I am stuck and can not figure it out. I remixed her game and I am sharing the link.

2

That’s a strange one, and I don’t see anything in this program that should be causing that error. I’m going to pass this along to our engineers and see if they’ve got any ideas.

3

Line 11 is the problem: elf.setCollider("point");

I think that because the collider is being set to “point”. I’d suggest removing this line of code or keeping the collider as a rectangle or circle.
https://docs.code.org/gamelab/setCollider/

4

Thanks Josh and Mike. The setCollider was the issue. My student is eternally grateful!!!