How to Fix AttributeError: module 'torch.jit' has no attribute '_script_if_tracing' in Detectron2?

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Understanding the Error

Steps to Resolve the Error

Check PyTorch Version: First, ensure that you have the correct version of PyTorch installed. Detectron2 may require a specific version that is compatible with other packages.

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Install Compatible Detectron2 Version: Based on the PyTorch version, you may need to install a specific version of Detectron2. Update or install Detectron2 using the pre-built binaries.

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Adjust the URL to match your PyTorch and CUDA version if necessary.

Restart Runtime: Sometimes a simple restart of the runtime environment in Colab can resolve version conflicts.

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Reinstall PyTorch and Detectron2: If issues persist, try reinstalling both PyTorch and Detectron2. Make sure to uninstall existing installations to avoid conflicts.

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By following these steps, you should be able to resolve the error and successfully run Detectron2 in your Colab environment. Ensure you choose compatible versions of PyTorch and Detectron2 aligned with the requirements of your project to achieve smooth functionality.

Conclusion