Generate Mnemonic Error

[JustinSeidl]

Hi Jason,

I've used your repository to setup first Ethereum wallet in React Native. I thought I was on the right track but seem to be at a roadblock with the following error:

[Unhandled promise rejection: TypeError: undefined is not an object (evaluating '_ethers.ethers.HDNode.entropyToMnemonic')]

• lib/ethereum/wallet.ts:13:26 in generateMnemonics
• lib/ethereum/wallet.ts:33:28 in createWallet

The issue stems from the following method:

const generateMnemonics = () => {
  return ethers.utils.HDNode.entropyToMnemonic(ethers.utils.randomBytes(16)).split(' ')
}

Do you have any ideas on how I can fix?