I put the device tree to: device/samsung/gta3xlwifi

lunch twrp_gta3xlwifi-eng
In file included from build/make/core/config.mk:291:
In file included from build/make/core/envsetup.mk:266:
build/make/core/product_config.mk:179: error: No matches for product "twrp_gta3xlwifi".
18:04:30 dumpvars failed with: exit status 1
Device gta3xlwifi not found. Attempting to retrieve device repository from TeamWin Github (http://github.com/TeamWin).
Repository for gta3xlwifi not found in the TeamWin Github repository list.
If this is in error, you may need to manually add it to your .repo/local_manifests/roomservice.xml
In file included from build/make/core/config.mk:291:
In file included from build/make/core/envsetup.mk:266:
build/make/core/product_config.mk:179: error: No matches for product "twrp_gta3xlwifi".
18:04:31 dumpvars failed with: exit status 1
In file included from build/make/core/config.mk:291:
In file included from build/make/core/envsetup.mk:266:
build/make/core/product_config.mk:179: error: No matches for product "twrp_gta3xlwifi".
18:04:31 dumpvars failed with: exit status 1

** Don't have a product spec for: 'twrp_gta3xlwifi'
** Do you have the right repo manifest?

Hi Man,

I am trying to compile the complete source code with lineageOS 16.0. However there are always compilation problems happended. Is there any guide I can learn from? Looking forward to your generous reply.

`
jidou@jidou-System-Product-Name:~/workspace/lineage$ brunch omni_gta3xlwifi-userdebug
including vendor/lineage/vendorsetup.sh
Trying dependencies-only mode on a non-existing device tree?

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=9
LINEAGE_VERSION=16.0-20200421-UNOFFICIAL-
TARGET_PRODUCT=omni_gta3xlwifi
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=cortex-a53
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.15.0-96-generic-x86_64-Ubuntu-16.04.5-LTS
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=PQ3A.190801.002
OUT_DIR=/home/jidou/workspace/lineage/out
RECOVERY_VARIANT=twrp

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=9
LINEAGE_VERSION=16.0-20200421-UNOFFICIAL-
TARGET_PRODUCT=omni_gta3xlwifi
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=cortex-a53
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.15.0-96-generic-x86_64-Ubuntu-16.04.5-LTS
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=PQ3A.190801.002
OUT_DIR=/home/jidou/workspace/lineage/out
RECOVERY_VARIANT=twrp

ninja: no work to do.
ninja: no work to do.
No need to regenerate ninja file
No need to regenerate ninja file
[100% 1/1] build bacon
FAILED: bacon
/bin/bash -c "(ln -f /home/jidou/workspace/lineage/out/target/product/gta3xlwifi/lineage-16.0-20200421-UNOFFICIAL-.zip ) && (md5sum /home/jidou/workspace/lineage/out/target/product/gta3xlwifi/lineage-16.0-20200421-UNOFFICIAL-.zip | sed "s|/home/jidou/workspace/lineage/out/target/product/gta3xlwifi/||" > /home/jidou/workspace/lineage/out/target/product/gta3xlwifi/lineage-16.0-20200421-UNOFFICIAL-.zip.md5sum ) && (echo "Package Complete: /home/jidou/workspace/lineage/out/target/product/gta3xlwifi/lineage-16.0-20200421-UNOFFICIAL-.zip" >&2 )"
ln: failed to access '/home/jidou/workspace/lineage/out/target/product/gta3xlwifi/lineage-16.0-20200421-UNOFFICIAL-.zip': \u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55
ninja: build stopped: subcommand failed.
11:52:32 ninja failed with: exit status 1

failed to build some targets (26 seconds)

`

I'm currently waiting for the device's battery to be completely discharged to be able to access it with odin again. My main goal is to be able to turn this device back to Android 9 or install a custom rom, with 2GB of RAM, which is automatically upgraded to Android 11. I couldn't find a published twrp for this device, which I searched in the twrp original application. Can I use what you posted with odin? Or what route would you suggest I follow? My device is exactly the same model as you specified. Thanks in advance.