# IMG_PARAM_INVALID: Invalid image parameter

> A transform parameter is out of range, unknown, or not written in its normal form. Coho asks for one spelling of each transform so that one image is cached once. The `parameter` member names it.

Sent by the image service (400). The page: https://coho-cms.com/errors/img-param-invalid/

## What to do

Build the URL with the delivery SDK's image helper, or write the parameter as the detail says.

## The response

```json
{
  "code": "IMG_PARAM_INVALID",
  "type": "https://coho-cms.com/errors/img-param-invalid",
  "title": "Invalid image parameter",
  "status": 400,
  "detail": "What went wrong in this request, in a sentence."
}
```

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