jni_zero : Compilation error of M120 webrtc android

Question

I have used following commands for webrtc android compilation on Ubuntu 22.04 Python version : 3.8 OpenJDK version : 11

1. git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

2. cd depot_tools

3. export PATH=/usr/local/webrtc_android/depot_tools:$PATH

4. fetch --nohooks webrtc_android

5. gclient sync

6. setup proxy on separate location for reaching ubuntu servers

  vi /etc/apt/apt.conf.d/01proxy

  Acquire::http::Proxy "PROXYSERVER.com:PORT";

7. run ./build/install-build-deps.sh

8. cd src

9. git branch -r

   git checkout branch-heads/6099

10. tools_webrtc/android/build_aar.py

On compilation of build_aar.py, getting the following error saying "undefined identifier jni_zero"

enter image description here

Can any one help on how to get the jni_zero issue fixed ...

Thanks in advance, Nagaraju Samudrala

I was expecting a successful compilation of the command - "tools_webrtc/android/build_aar.py" and android aar file getting generated.