Can not working

[sehirger]

Arduino/libraries/BLE-MIDI/src/hardware/BLEMIDI_ESP32.h: In member function 'virtual void bleMidi::MyCharacteristicCallbacks::onWrite(BLECharacteristic*)':
Arduino/libraries/BLE-MIDI/src/hardware/BLEMIDI_ESP32.h:116:55: error: conversion from 'String' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
  116 |         std::string rxValue = characteristic->getValue();
      |                               ~~~~~~~~~~~~~~~~~~~~~~~~^~
exit status 1

Compilation error: exit status 1