'You are running as per the script presented at https://www.udoo.org/docs/Advanced_Topics/Compile_Android_From_Source.html'. However, it is too difficult to download due to frequent errors. Do you have the original source or do you know how to download it in the correct way?
Downloading the Android source for UDOO often fails due to its massive size and network instability. To improve reliability, use `repo sync` with options like `-j` for parallel downloads, `--partial-clone` to reduce initial size, and simply re-run the command to resume interruptions. Ensure a stable wired internet connection and ample disk space. The source comes from AOSP, and UDOO's instructions guide you to configure it for their boards. Check UDOO's forums for specific advice if issues persist.