# Updating Code Base for AIM 2024

![](https://1677675178-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MWeiLnwrIKZJWLFsXhf%2Fuploads%2Fgit-blob-938e48728f153690f92471683056498efacbcd24%2Fupdate_dir.png?alt=media) When ever you update the files/content of ***b3rb\_ros\_line\_follower & dream\_world*** present in *\~/cognipilot/cranium/src*, the following commands to build the changes:

```
$ cd ~/cognipilot/cranium
$ colcon build
$ source ~/cognipilot/cranium/install/setup.bash
```

After succesful, build a similar message should pop up:

![](https://1677675178-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MWeiLnwrIKZJWLFsXhf%2Fuploads%2Fgit-blob-f9cbb91e69aa6e2bac64a9a3a3e251d525d1700e%2Fbuild_success.PNG?alt=media)

![](https://1677675178-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MWeiLnwrIKZJWLFsXhf%2Fuploads%2Fgit-blob-3d51dff84cf9018ae20a9ce5c089c6db2d7e2776%2Fcolcon_build_pass.PNG?alt=media)