> 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.

# MFEFLOW_E123

This folder already has an mfeflow\.json.

## Fix

adopt only starts a project file; it never changes one. Use `mfeflow add` or `mfeflow upgrade` on this project, or run adopt in a folder that has no mfeflow\.json.