how can i fix "add_lunch_combo is obsolete. Use COMMON_LUNCH_CHOICES in your AndroidProducts.mk instead."?

Question

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I am trying to build custom rom first time ,in that filed i am newbie so i need help to complete that project , now i am stuck in device/realme/rmx1921/vendorsetup.sh and . build/envsetup.sh file i get error and warning and when i go for next step which is lunch then i can't get my combo lunch list

Answer 1

As the Android documentation states, add_lunch_combo can be found in the device/<vendor>/<model>/vendorsetup.sh file, but it is only used for Android 9 or lower.

Instead you need to use COMMON_LUNCH_CHOICES in the device/<vendor>/<model>/AndroidProducts.mk so the device can be chosen from the Lunch menu.

If your vendorsetup.sh is:

add_lunch_combo lineage_RMX1921-userdebug
add_lunch_combo lineage_RMX1921-user
add_lunch_combo lineage_RMX1921-env

Then you should modify your AndroidProducts.mk to add:

COMMON_LUNCH_CHOICES :=  \
    lineage_RMX1921-userdebug \
    lineage_RMX1921-user \
    lineage_RMX1921-env

Now you could remove the add_lunch_combo lines from vendorsetup.sh to get rid of the warnings or, as in your case, delete the file if it's not needed for anything else.