# strategy_check_code_only

Checks run on code versions, and this version is a Studio version.

## What happened

The check reads a strategy file. A Studio version has no file to read, so starting a check on one is refused with 409.

## What to do

Start the check on a version written as code.

## Example

```json
{
  "error": "Checks run on code versions.",
  "code": "strategy_check_code_only"
}
```