libtorchtext.so: undefined symbol: _ZN5torch3jit17parseSchemaOrNameERKSs TorchText Error Fixed

The error:

OSError: /usr/local/lib/python3.11/dist-packages/torchtext/lib/libtorchtext.so: undefined symbol: _ZN5torch3jit17parseSchemaOrNameERKSs

suggests that there is a compatibility issue between torchtext and torch. This happens when torchtext is built against a different version of torch than the one currently installed.

Solution: Upgrade/Downgrade PyTorch and TorchText

1. Check the Installed Versions
   Run the following command to check your PyTorch and TorchText versions: python -c "import torch; import torchtext; print(torch.__version__, torchtext.__version__)"
2. Uninstall Existing Packages
   First, remove PyTorch and TorchText: pip uninstall torch torchtext -y
3. Reinstall Compatible Versions
   If you are using PyTorch 2.x, reinstall using: pip install torch torchvision torchaudio torchtext --index-url https://download.pytorch.org/whl/cpu (Replace cpu with cu118 for CUDA 11.8, or cu121 for CUDA 12.1 if you have a GPU.)
4. Verify Installation
   Run the following to check if the error persists: import torch import torchtext print(torch.__version__, torchtext.__version__)

Alternative: Use Matching Versions

If the problem persists, you may need to install specific compatible versions. For example, if you are using PyTorch 2.1.0, install TorchText 0.16.0:

pip install torch==2.1.0 torchtext==0.16.0