capacitor-community / text-to-speech: "Not yet initialized or not available on this device"

Sending plugin error: {"save":false,"callbackId":"...","pluginId":"TextToSpeech",

"methodName":"speak","success":false,"error":{"message":"Not yet initialized or

not available on this device.","code":"UNAVAILABLE"}}

It happened to me only on the emulator. On a real device, it worked.