Hey @jold, I did get your program to run but it took a little work.
When I click on your link it opens your project in “The Theatre” environment and when I try to run it I am getting the same error you are. This is a “Neighborhood” project tho. So I copied and pasted your code into the sandbox for Unit 1 (Lesson 22: Sandbox: The Neighborhood).
I got another error and in your RandomWalkPainter class in the constructor, line 12, it tries to initialize numMoves to 0 but your instance variable is numberOfMoves. Then when I ran it I got the following error: [EXCEPTION] The location specified isn’t on the grid. I’m assuming you are using a grid larger than 8x8 so it makes sense I would get this error because in your myNeighborhood class on line 7 you set x = 16. I changed it to x = 4 and the painter is able to move.
I’ll bring up to the dev team that when sharing a project, it would be nice to have the original environment (ex: neighborhood, theatre, console) translate over with the share link. These are definitely things to email to support@code.org. I know we have limited time as teachers but I know the entire code.org team is dedicated to making the student/teacher experience with the curriculum as user friendly as possible. All of these scenarios are really great to bring up and I can’t thank you enough for sharing your experience and great ideas you are using in your class.
-Sam