Raspberry Pi5 Picamera2 hailo example issue after upgrade to 4.20

General
1

admin@pi5-hailo:~ $ python picamera2/examples/hailo/detect.py
Traceback (most recent call last):
File “/home/admin/picamera2/examples/hailo/detect.py”, line 9, in
from picamera2 import MappedArray, Picamera2, Preview
File “/usr/lib/python3/dist-packages/picamera2/init.py”, line 4, in
import libcamera
File “/usr/lib/python3/dist-packages/libcamera/init.py”, line 4, in
from ._libcamera import *
ImportError: /lib/aarch64-linux-gnu/libcamera.so.0.4: undefined symbol: _ZN7libpisp22compute_optimal_strideER24pisp_image_format_configb

2

Hey @andrii.arsatiants ,

Is this still happenning ?

This should resolve it:

  1. First, attempt a full upgrade of the system
  2. If that doesn’t resolve it, try purging hailo-tappas-ccore and then reinstalling it
3

uninstall of libcamera0.3 hepled. and then fresh install of libcamera0.4. technically it was dynamic library path hell

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