First argument to new HDWalletProvider() must be a mnemonic phrase, a single private key, or a list of private keys

[ltfschoen]

Using the latest "@truffle/hdwallet-provider": "^2.1.12",, when I tried to run truffle migrate --reset --compile-all --network moonbase it gave me an error First argument to new HDWalletProvider() must be a mnemonic phrase, a single private key, or a list of private keys., it now expects the private key is a Uint8Array with length 32 to be provided as an array.
so provide a parameter privateKeys and type string[] as mentioned here https://github.com/trufflesuite/truffle/tree/develop/packages/hdwallet-provider

so i change it to

let args = {
   privateKeys: [privateKeyDev],
   providerOrUrl: 'http://localhost:9944/',
};
return new HDWalletProvider(args);

...

let args = {
   privateKeys: [privateKeyMoonbase],
   providerOrUrl: 'https://rpc.api.moonbase.moonbeam.network',
};
return new HDWalletProvider(args);

[eshaben]

hello! even with ^2.1.12 the private key as a string should work as it is a legacy parameter, but this raises a good point that we should update to the current accepted parameters (which also apply to the current version ^2.0.8).

I'll submit a PR for it. thanks for bringing this up!