[Question]: ModuleNotFoundError: No module named 'llama_index.core'

[Vishu611]

Question Validation

• I have searched both the documentation and discord for an answer.

Question

I have been using llama index for quite a while, when i tried to load my environment today i get the error. I have the lastest verion v0.10.15

ModuleNotFoundError: No module named 'llama_index.core'

I tried to downgrade the version , still get the same error.

[dosubot]

Hey @Vishu611! 👋 I'm Dosu, a friendly bot here to assist with bugs, answer questions, and guide you on contributing while we await a human maintainer. I'm diving into your issue regarding the ModuleNotFoundError with llama_index.core and will get back to you with a solution shortly!

[logan-markewich]

@Vishu611 Seems your env is a tad corrupted, v0.10.x had some major changes, any remnants of a previous install in your env will cause issues.

Start with a fresh venv. In a new terminal

pip uninstall llama-index  # remove any global
python -m venv venv
source venv/bin/activate
pip install llama-index

[Vishu611]

@logan-markewich , Thanks this worked now! Not sure why it failed when i did the exact same thing the last time. I was also wondering can we use the llama index cli like below on the .ipynb files? :

llamaindex-cli upgrade-file <file_path>

[dosubot]

Based on the context provided, it seems like you're encountering a ModuleNotFoundError with 'llama_index.core' due to an incorrect or missing import statement for a module that does not exist or is not installed in your environment. Here are some steps you can follow to resolve this issue:

1. Install the llama_index package using pip if it's not installed:

   pip install llama_index

2. Check your Python path to ensure the llama_index package is included:

   import sys
   print(sys.path)

3. Avoid naming conflicts by ensuring there are no files or directories named llama_index in your working directory.
4. If using a Jupyter notebook, restart the kernel after installing new packages.
5. If the issue persists, provide more information about your setup, including how you installed llama_index, the output of pip show llama_index, your Python version, and your operating system.

Additionally, consider starting with a fresh virtual environment:

pip uninstall llama-index # Remove any global install
python -m venv venv
source venv/bin/activate
pip install llama-index

If the issue still persists, you can try the following solutions that were suggested in similar issues:

• Copying generic_utils.py from llama_index/core/base/llms into llama_index/core/llms (source)
• Updating the necessary packages with the following command:

  pip install -U llama-index-core llama-index-llms-openai llama-index-embeddings-openai
  

  Make sure to restart the runtime for the environment changes to take effect after the upgrade (source).

Regarding your question about using the 'llamaindex-cli upgrade-file <file_path>' command on .ipynb files, yes, it is possible. The upgrade_file(file_path: str) function checks the file extension and calls upgrade_nb_file(file_path) if the file is a Jupyter Notebook (.ipynb). This function processes the notebook, upgrading module imports and installations as necessary based on the mappings and the logic defined in the script. The upgrade_nb_file function reads the notebook, processes each code cell to update imports and installations, and then writes the changes back to the original file (source).

I hope this helps! If you have any more questions or need further clarification, feel free to ask.

Sources

• ModuleNotFoundError: No module named 'llama_index'
• [Bug]: No module named 'llama_index.core.llms.generic_utils'
• [Bug]: Getting module not found error for llama_index.core.llms.generic_utils
• llama-index-core/llama_index/core/command_line/upgrade.py
• llama-index-core/pyproject.toml

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[kkiwas]

am getting this 'ModuleNotFoundError' when using the code from llama_index.output_parsers.guardrails import GuardrailsOutputParser. Can you help? I have been using Llama_index and eveything working find except for the output_parser

ModuleNotFoundError: No module named 'llama_index.output_parsers'