# strategy_not_declarative

The strategy uses code the Studio has no block for.

## What happened

The Studio shows a strategy as blocks, and a block exists for part of the language only. This strategy uses something outside that part, so it cannot be shown as blocks. The reply is 422, and `reasons` lists each one with its line.

## What to do

Keep editing it as code, or rewrite the lines the reply names so that they use what the Studio shows.

## Example

```json
{
  "error": "This strategy uses code the Studio cannot show.",
  "code": "strategy_not_declarative",
  "reasons": [
    {
      "line": 42,
      "code": "statement",
      "message": "A loop has no block in the Studio."
    }
  ]
}
```