<!-- 0Gkit docs — WALLET_NO_PRIVATE_KEY
     Source: https://docs.0gkit.com/errors/WALLET_NO_PRIVATE_KEY
     LLM-friendly Markdown twin of the page. -->

# WALLET_NO_PRIVATE_KEY

**No private key derived from mnemonic**

## What happened

`mnemonicToAccount()` returned a Hierarchical Deterministic key with no `privateKey`. Either the mnemonic is invalid, or the derivation index isn't reachable on `m/44'/60'/0'/0/i`.

## How to fix

Verify the mnemonic is a valid BIP-39 phrase and the index is in range (0–9 for the standard 10-account anvil/devnet derivation).

## Example

```ts
import { testWallet } from "@foundryprotocol/0gkit-testing";
const w = testWallet({ index: 0 }); // anvil dev account 0
```

## Reference

- Namespace: `WALLET`
- Help URL: `https://0gkit.com/errors/WALLET_NO_PRIVATE_KEY`
- See also: [all error codes](/errors)