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# E202

# Field Not in Schema

## Erroneous Code Example

This error occurs when you reference a field that is not defined in your schema for a given item type.

For example, the field `username` is not defined in the schema for the `User` item type.

<CodeGroup>
  ```rust queries.hx theme={null}
  QUERY getUser(id: ID) =>
      user <- N<User>(id)
      RETURN user::{username}
  ```

  ```rust schema.hx theme={null}
  N::User {
      age: U32,
  }
  ```
</CodeGroup>

## Solution

Define the field `username` in the schema for the `User` item type.

<CodeGroup>
  ```rust schema.hx theme={null}
  N::User {
      username: String,
      age: U32,
  }
  ```
</CodeGroup>