picamera2 issue

[AK95AM98]

from vilib import Vilib
File "/usr/local/lib/python3.9/dist-packages/vilib-0.2.0-py3.9.egg/vilib/init.py", line 2, in
from .vilib import Vilib
File "/usr/local/lib/python3.9/dist-packages/vilib-0.2.0-py3.9.egg/vilib/vilib.py", line 8, in
picamera2_version = require('picamera2')[0].version
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 886, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 772, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'picamera2' distribution was not found and is required by the application