[Q]AOSP lunch wrong target - Android Q&A, Help & Troubleshooting

Hello,
I wanted to build AOSP 8.0 from source for my device but it starts building everytime for the wrong target.
In my case what I do is first running build/envsetup.sh && lunch:
Code:
Lunch menu... pick a combo:
1. aosp_arm-eng
2. aosp_arm64-eng
3. aosp_mips-eng
4. aosp_mips64-eng
5. aosp_x86-eng
6. aosp_x86_64-eng
7. full_fugu-userdebug
8. aosp_fugu-userdebug
9. car_emu_arm64-userdebug
10. car_emu_arm-userdebug
11. car_emu_x86_64-userdebug
12. car_emu_x86-userdebug
13. mini_emulator_arm64-userdebug
14. m_e_arm-userdebug
15. m_e_mips64-eng
16. m_e_mips-userdebug
17. mini_emulator_x86_64-userdebug
18. mini_emulator_x86-userdebug
19. aosp_dragon-userdebug
20. aosp_dragon-eng
21. aosp_marlin-userdebug
22. aosp_marlin_svelte-userdebug
23. aosp_sailfish-userdebug
24. aosp_angler-userdebug
25. aosp_bullhead-userdebug
26. aosp_bullhead_svelte-userdebug
27. hikey-userdebug
28. aosp_f8131-userdebug
29. aosp_f8132-userdebug
30. aosp_f8331-userdebug
31. aosp_f8332-userdebug
32. aosp_g8231-userdebug
33. aosp_g8232-userdebug
34. aosp_f5321-userdebug
35. aosp_g8141-userdebug
36. aosp_g8142-userdebug
37. aosp_f5121-userdebug
38. aosp_f5122-userdebug
39. aosp_e2303-userdebug
40. aosp_e2333-userdebug
Which would you like? [aosp_arm-eng] 37
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=8.0.0
TARGET_PRODUCT=aosp_f5121
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_PLATFORM_VERSION=OPR1
TARGET_BUILD_APPS=
TARGET_ARCH=arm64
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=cortex-a53
TARGET_2ND_ARCH=arm
TARGET_2ND_ARCH_VARIANT=armv7-a-neon
TARGET_2ND_CPU_VARIANT=cortex-a53.a57
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.4.0-31-generic-x86_64-with-Ubuntu-14.04-trusty
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=OPR6.170623.012
OUT_DIR=out
AUX_OS_VARIANT_LIST=
So I am picking number 37 corresponding to my device, so far so good.
But now after running the make -jN command it starts building everytime for aosp_arm-eng instead of aosp_f5121-userdebug.
So after running the make command it gives me this and starts building:
Code:
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=8.0.0
TARGET_PRODUCT=aosp_arm
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_PLATFORM_VERSION=OPR1
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a
TARGET_CPU_VARIANT=generic
TARGET_2ND_ARCH=
TARGET_2ND_ARCH_VARIANT=
TARGET_2ND_CPU_VARIANT=
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.4.0-31-generic-x86_64-with-Ubuntu-14.04-trusty
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=OPR6.170623.012
OUT_DIR=out
AUX_OS_VARIANT_LIST=
I also tried
Code:
lunch aosp_f5121-userdebug
but this changes nothing as it just builds for aosp_arm-eng.
What am I doing wrong?
Thanks.

---

Hello,
I wanted to build AOSP 8.0 from source for my device but it starts building everytime for the wrong target.
In my case what I do is first running build/envsetup.sh && lunch: