In file included from c:\Users\SW\Documents\Arduino\libraries\ESP32_BLE_Arduino\src/BLEAdvertising.h:15,
                 from c:\Users\SW\Documents\Arduino\libraries\ESP32_BLE_Arduino\src/BLEServer.h:19,
                 from c:\Users\SW\Documents\Arduino\libraries\ESP32_BLE_Arduino\src/BLEDevice.h:18,
                 from H:\Arduino\JKBMS_MQtt_mitESP32\Forum_Akkudoctor\JKBMS-WI\JKBMS-WI.ino:5:
c:\Users\SW\Documents\Arduino\libraries\ESP32_BLE_Arduino\src/FreeRTOS.h:61:35: error: 'ringbuf_type_t' has not been declared
   61 |         Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT);
      |                                   ^~~~~~~~~~~~~~
H:\Arduino\JKBMS_MQtt_mitESP32\Forum_Akkudoctor\JKBMS-WI\BLE_BMS_Connection.ino: In function 'void enableNotify(BLERemoteCharacteristic*)':
H:\Arduino\JKBMS_MQtt_mitESP32\Forum_Akkudoctor\JKBMS-WI\BLE_BMS_Connection.ino:63:29: error: void value not ignored as it ought to be
   63 |   bool ok = desc->writeValue(v, sizeof(v), true);
      |             ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
H:\Arduino\JKBMS_MQtt_mitESP32\Forum_Akkudoctor\JKBMS-WI\BLE_BMS_Connection.ino: In function 'bool connectToBLEServer()':
H:\Arduino\JKBMS_MQtt_mitESP32\Forum_Akkudoctor\JKBMS-WI\BLE_BMS_Connection.ino:172:52: error: conversion from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to non-scalar type 'String' requested
  172 |     String value = pRemoteCharacteristic->readValue();
      |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
Mehrere Bibliotheken wurden für "BLEDevice.h" gefunden
  Benutzt: C:\Users\SW\Documents\Arduino\libraries\ESP32_BLE_Arduino
  Nicht benutzt: C:\Users\SW\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.8\libraries\BLE
exit status 1

Compilation error: void value not ignored as it ought to be