After adding the sap package on the Tizen 4 emulator, you may get the following error message :

Extra package installation is failed. sap must be installed MANUALLY.

• Extra package installation is failed. sap must be installed MANUALLY!
  https://github.com/Samsung/Tizen.NET/issues/54
• Wearable 4.0: Extra package installation is failed! Sap must be installed Manually!
  https://forum.developer.samsung.com/t/wearable-4-0-extra-package-installation-is-failed-sap-must-be-installed-manually/2498

Procedure

1. Copy packages from the host computer to the target.
   > sdb push [tizen_sdk_path]\platforms\tizen-4.0\wearable\emulator-images\add-ons\sap /tmp/.emulator/apps/sap

2. Switch to root mode
   > sdb root on

3. Remount filesystem as Read/Write
   > sdb shell mount -o rw,remount /

4. Install sap
   > sdb shell rpm -Uvh /tmp/.emulator/apps/sap/sap-1.9.5-0.i686.rpm

After emulator reboot, AccessoryService Emulator on Android Device is connected.