Error when i resume training

[gin721]

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• I have searched the HUB issues and found no similar bug report.

HUB Component

Training

Bug

I get this error again when i try to resume my training i got it before too and got a fix for it but still it gives me error when i try to resume again

requirements: Ultralytics requirement ['hub-sdk>=0.0.12'] not found, attempting AutoUpdate...
Collecting hub-sdk>=0.0.12
  Downloading hub_sdk-0.0.18-py3-none-any.whl.metadata (10 kB)
Requirement already satisfied: requests in /usr/local/lib/python3.11/dist-packages (from hub-sdk>=0.0.12) (2.32.3)
Requirement already satisfied: charset-normalizer<4,>=2 in /usr/local/lib/python3.11/dist-packages (from requests->hub-sdk>=0.0.12) (3.4.1)
Requirement already satisfied: idna<4,>=2.5 in /usr/local/lib/python3.11/dist-packages (from requests->hub-sdk>=0.0.12) (3.10)
Requirement already satisfied: urllib3<3,>=1.21.1 in /usr/local/lib/python3.11/dist-packages (from requests->hub-sdk>=0.0.12) (2.3.0)
Requirement already satisfied: certifi>=2017.4.17 in /usr/local/lib/python3.11/dist-packages (from requests->hub-sdk>=0.0.12) (2025.1.31)
Downloading hub_sdk-0.0.18-py3-none-any.whl (42 kB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 42.9/42.9 kB 122.5 MB/s eta 0:00:00
Installing collected packages: hub-sdk
Successfully installed hub-sdk-0.0.18

requirements: AutoUpdate success ✅ 2.4s, installed 1 package: ['hub-sdk>=0.0.12']
requirements: ⚠️ Restart runtime or rerun command for updates to take effect

Ultralytics HUB: New authentication successful ✅
Ultralytics HUB: View model at https://hub.ultralytics.com/models/M84NgRRQf2qoOoUhxySU 🚀
Downloading https://storage.googleapis.com/ultralytics-hub.appspot.com/users/lVTtJwtXWBhAmgr1XcjfO5Bx7T73/models/M84NgRRQf2qoOoUhxySU/epoch-143.pt to 'weights/epoch-143.pt'...
⚠️ Download failure, retrying 1/3 https://storage.googleapis.com/ultralytics-hub.appspot.com/users/lVTtJwtXWBhAmgr1XcjfO5Bx7T73/models/M84NgRRQf2qoOoUhxySU/epoch-143.pt...
---------------------------------------------------------------------------
UnpicklingError                           Traceback (most recent call last)
[<ipython-input-3-09bf6904cf6a>](https://localhost:8080/#) in <cell line: 0>()
      1 hub.login('5f19c5f8675cca74bd1228f03b9f32c8a99da122bf')
      2 
----> 3 model = YOLO('https://hub.ultralytics.com/models/M84NgRRQf2qoOoUhxySU')
      4 results = model.train()

7 frames
[/usr/local/lib/python3.11/dist-packages/torch/serialization.py](https://localhost:8080/#) in _legacy_load(f, map_location, pickle_module, **pickle_load_args)
   1626         )
   1627 
-> 1628     magic_number = pickle_module.load(f, **pickle_load_args)
   1629     if magic_number != MAGIC_NUMBER:
   1630         raise RuntimeError("Invalid magic number; corrupt file?")

UnpicklingError: invalid load key, '<'.

Help would be appreciated

Environment

No response

Minimal Reproducible Example

No response

Additional

No response

[UltralyticsAssistant]

👋 Hello @gin721, thank you for raising an issue about Ultralytics HUB 🚀! Please visit our HUB Docs to learn more:

• Quickstart. Start training and deploying YOLO models with HUB in seconds.
• Datasets: Preparing and Uploading. Learn how to prepare and upload your datasets to HUB in YOLO format.
• Projects: Creating and Managing. Group your models into projects for improved organization.
• Models: Training and Exporting. Train YOLOv5 and YOLOv8 models on your custom datasets and export them to various formats for deployment.
• Integrations. Explore different integration options for your trained models, such as TensorFlow, ONNX, OpenVINO, CoreML, and PaddlePaddle.
• Ultralytics HUB App. Learn about the Ultralytics App for iOS and Android, which allows you to run models directly on your mobile device.
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  • Android. Explore TFLite acceleration on mobile devices.
• Inference API. Understand how to use the Inference API for running your trained models in the cloud to generate predictions.

If this is a 🐛 Bug Report, please provide a clearer Minimum Reproducible Example (MRE) to help us investigate more effectively. This includes:

1. Clear steps to reproduce the problem (e.g., code snippets, usage steps, command-line arguments, etc.).
2. Relevant system/configuration details and the version of SDK or software you're using.
3. Any associated logs or screenshots that demonstrate the issue.

If this is a ❓ Question, please provide as much detail as possible, including your dataset, model, environment details, and the exact use-case.

We try to respond to all issues promptly, and an Ultralytics engineer will assist you soon. Thank you for your patience! ✨

[sergiuwaxmann]

@gin721 You should be able to resume training now.
This issue occurs when you're training in an unstable environment. I suggest using a different environment to avoid this issue.