Unable to Load Mitsuba & Requested an unsupported variant "packet_rgb". The following variants are available: scalar_rgb.

[jingz666]

Hi! I ran into some problem when I was trying to activate mitsuba but I am not sure what I should do:

Summary: Unable to Load Mitsuba & Requested an unsupported variant "packet_rgb". The following variants are available: scalar_rgb.

After cloning the mitsuba2-python-package repository successfully, I tried to activate mitsuba, but it tells me that mitsuba is not activated when I tested it by calling the test_mitsuba.py. Below is a screenshot of the messages I got

System configuration

• The following is about the system configuration:
  
• I tried to update the version of clang, but it seems it's the latest version and I'm wondering how to update it.

Thank you!