---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/vector/exceptions/variables/E_VECTOR_STORE_PROJECTION_REQUIRED.md
description: >-
  Thrown when a read operation requires an explicit select projection. Fatal:
  projection is required for read operations.
---

# Variable: E\_VECTOR\_STORE\_PROJECTION\_REQUIRED

```ts
const E_VECTOR_STORE_PROJECTION_REQUIRED: CreatedException<[]>;
```

Defined in: [batteries/vector/exceptions.ts:102](https://github.com/NHTIO/ADK/blob/v1.20260607.0/src/batteries/vector/exceptions.ts#L102)

Thrown when a read operation requires an explicit select projection.
Fatal: projection is required for read operations.