Okay kiddo, let me explain what a dependency walker is.
You know when we build things with blocks and we need to add more blocks to make it stronger or taller?
Well, a computer program is kind of like a tower made of blocks. It's made up of lots of little parts called "files" that help it run properly.
But sometimes, those files need other files to help them work. And those files need other files too! It's like a giant chain of blocks holding up the tower, and if one block gets pulled out or broken, the whole tower could fall down.
That's where a dependency walker comes in. It's like a special tool that can check all the blocks in the tower, and make sure they have all the other blocks they need to stay standing. If a block is missing, the dependency walker can help us find out what it is, so we can put it back and make the tower strong again.
So, a dependency walker is a tool that helps computer programmers make sure their programs have all the necessary blocks they need to work properly. Pretty cool, huh?