1. copy project.xml into .repo/local_manifests (if the folder does not exist - create it)
either use STRG/CTRL + H to make hidden folders visible, or cp it via terminal
2. sync your setup again
repo sync
. build/envsetup.sh
lunch lineage_<device>-userdebug
make -j<thread count> bacon
device support: vns (Huawei P9 Lite)