Hi Ethan,
Thank you for your useful info. I also found the details in the following link.
“Set the environment variable ANDROID_HVPROTO=ddm on your development machine” is a key point for this challenge.
The Environment Variables can be set based on the following link.
In my case with Mac,
- open ~/.bash_profile
- Add:
#Hierarchy Viewer Variable
export ANDROID_HVPROTO=ddm - source ~/.bash_profile