AttributeError: Can't get attribute 'C3k2' on <module 'ultralytics.nn.modules.block'

[duynguyen2019]

When I downloaded yolo11n.pt from GitHub and tried the below code

from ultralytics import YOLO
# Load a COCO-pretrained YOLO11n model
model = YOLO("yolo11n.pt")

I got an error AttributeError: Can't get attribute 'C3k2' on <module 'ultralytics.nn.modules.block' from ..local\programs\python\python38\lib\site-packages\ultralytics\nn\modules\block.py'>

python --version
Python 3.8.7

ultralytics
8.2.79

[UltralyticsAssistant]

👋 Hello @duynguyen2019, thank you for submitting an issue to the ultralytics/assets repository 🚀. This is an automated response to help us gather necessary details and an Ultralytics engineer will assist you soon.

To better address your concern, please provide the following information:

1. Bug Reports:
   • A clear and concise description of the bug you're experiencing.
   • A minimum reproducible example (MRE) that demonstrates the issue. You can refer to our guide here for details.
   • Your environment details, such as:
     • Operating System
     • Python version (you provided 3.8.7)
     • Package versions (Ultralytics version is 8.2.79, please specify others if relevant)
   • Expected behavior vs. actual behavior
   • Any error messages or logs related to the issue, such as the one you received about C3k2.

If you need to add any additional information, please comment on this issue. Also, ensure you've searched existing issues to avoid duplicates. Thank you for your cooperation in helping us improve our project! 🙌🔍

[Zhaonb]

pip install --upgrade ultralytics

[pderrenger]

@Zhaonb please try upgrading to the latest version using pip install --upgrade ultralytics and see if the issue persists. If you continue to experience problems, let us know.

[moosich7]

@Zhaonb thank you，I did follow you and resolve the problem like @duynguyen2019's error

[lyc728]

same error I can not solve the problems

@Zhaonb please try upgrading to the latest version using pip install --upgrade ultralytics and see if the issue persists. If you continue to experience problems, let us know.