For AI agents: the complete documentation index is available at https://mfeflow.github.io/mfeflow/llms.txt, the full documentation bundle is available at https://mfeflow.github.io/mfeflow/llms-full.txt, and this page is available as Markdown at https://mfeflow.github.io/mfeflow/errors/E602.md.
mfeflow

    MFEFLOW_E602

    The project is newer than the version you are upgrading to.

    Fix

    Upgrade only moves forward. Install a newer mfeflow, or leave the project as it is.