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/E112.md.
mfeflow

    MFEFLOW_E112

    An app in mfeflow.json is not on disk.

    Fix

    Restore the folder, or remove the app from "apps" in mfeflow.json.