> 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_E122

An app has both mfeflow\.app.json and the old mfe.json.

## Fix

Keep mfeflow\.app.json and delete mfe.json. Move any field you still need into mfeflow\.app.json first. See [https://mfeflow.github.io/mfeflow/reference/mfeflow-app-json](https://mfeflow.github.io/mfeflow/reference/mfeflow-app-json).