bitcoin-cli createwallet electrumpersonal server true I'm a noob following instructions to setup Electrum Personal Server on Linux.

I came to this instruction and I'm stuck.

Got an warning. What is this?

{
  "name": "electrumpersonalserver",
  "warning": ""
}


Thanks
There's no warning there.

The createwallet command will always return a JSON object containing the name of the wallet created, and a warning string. If there was a warning during wallet creation, that warning string would contain text. But it is just an empty string so there is no warning.