# TRAIT_IN_USE: Types still take the trait

> Content types still take this trait, so it cannot be deleted.

Sent by the management API (400). The page: https://coho-cms.com/errors/trait-in-use/

## What to do

Remove the trait from those types first.

## The response

```json
{
  "code": "TRAIT_IN_USE",
  "type": "https://coho-cms.com/errors/trait-in-use",
  "title": "Types still take the trait",
  "status": 400,
  "detail": "What went wrong in this request, in a sentence.",
  "instance": "/v1/projects/…"
}
```

Every error code: https://coho-cms.com/errors/