Vim4 not creating apk

@goenjoy
1.I am trying to add new app in package which require to generate new apk at the time build.
2.I have added new app in package/app/ folder where every priv-app is present but it’s not generating apk which require service and framework.
3. when we keep android.mk that time it’s generating apk but if i put android.bp file it is not generating apk

in the device.mk you will have to add the apps that you want to have compiled with the rom.

@Pradeep_Kumar_Upadhy

device/khadas/kvim3l$
--- a/kvim3l.mk
+++ b/kvim3l.mk
@@ -471,6 +471,9 @@ AB_OTA_POSTINSTALL_CONFIG += \
     POSTINSTALL_OPTIONAL_system=true
 endif
 
+PRODUCT_PACKAGES += \
+    xxxx

xxxx==>Package name