Can not build ESP32-BLE-Keyboard of example in window 11

[DangChinh1496]

debug screen is:

C:\Users\GUEST01\Documents\Arduino\libraries\ESP32_BLE_Keyboard\BleKeyboard.cpp: In member function 'void BleKeyboard::begin()': C:\Users\GUEST01\Documents\Arduino\libraries\ESP32_BLE_Keyboard\BleKeyboard.cpp:106:19: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string'} to 'String' 106 | BLEDevice::init(deviceName); | ^~~~~~~~~~ | | | std::string {aka std::__cxx11::basic_string} In file included from C:\Users\GUEST01\Documents\Arduino\libraries\ESP32_BLE_Keyboard\BleKeyboard.cpp:9: C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLEDevice.h:41:27: note: initializing argument 1 of 'static void BLEDevice::init(String)' 41 | static void init(String deviceName); // Initialize the local BLE environment. | ~~~~~~~^~~~~~~~~~ C:\Users\GUEST01\Documents\Arduino\libraries\ESP32_BLE_Keyboard\BleKeyboard.cpp:117:32: error: no matching function for call to 'BLECharacteristic::setValue(std::string&)' 117 | hid->manufacturer()->setValue(deviceManufacturer); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ In file included from C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLEHIDDevice.h:17, from C:\Users\GUEST01\Documents\Arduino\libraries\ESP32_BLE_Keyboard\BleKeyboard.h:24, from C:\Users\GUEST01\Documents\Arduino\libraries\ESP32_BLE_Keyboard\BleKeyboard.cpp:1: C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:77:8: note: candidate: 'void BLECharacteristic::setValue(uint8_t*, size_t)' 77 | void setValue(uint8_t *data, size_t size); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:77:8: note: candidate expects 2 arguments, 1 provided C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:78:8: note: candidate: 'void BLECharacteristic::setValue(String)' 78 | void setValue(String value); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:78:24: note: no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string'} to 'String' 78 | void setValue(String value); | ~~~~~~~^~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:79:8: note: candidate: 'void BLECharacteristic::setValue(uint16_t&)' 79 | void setValue(uint16_t &data16); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:79:27: note: no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string'} to 'uint16_t&' {aka 'short unsigned int&'} 79 | void setValue(uint16_t &data16); | ~~~~~~~~~~^~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:80:8: note: candidate: 'void BLECharacteristic::setValue(uint32_t&)' 80 | void setValue(uint32_t &data32); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:80:27: note: no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string'} to 'uint32_t&' {aka 'long unsigned int&'} 80 | void setValue(uint32_t &data32); | ~~~~~~~~~~^~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:81:8: note: candidate: 'void BLECharacteristic::setValue(int&)' 81 | void setValue(int &data32); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:81:22: note: no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string'} to 'int&' 81 | void setValue(int &data32); | ~~~~~^~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:82:8: note: candidate: 'void BLECharacteristic::setValue(float&)' 82 | void setValue(float &data32); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:82:24: note: no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string'} to 'float&' 82 | void setValue(float &data32); | ~~~~~~~^~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:83:8: note: candidate: 'void BLECharacteristic::setValue(double&)' 83 | void setValue(double &data64); | ^~~~~~~~ C:\Users\GUEST01\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.2\libraries\BLE\src/BLECharacteristic.h:83:25: note: no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string'} to 'double&' 83 | void setValue(double &data64); | ~~~~~~~~^~~~~~

exit status 1

Compilation error: exit status 1

[santalex]

if you are using Arduino IDE, you can try platformio, it feels like Arduino IDE's problem.

[eticaretmuhendisi]

Esp32's core files have been modified with 3.0.0, so there is an incompatibility. The workaround is to revert to version 2.0.17 until the library developers bring an update.

[Zer0TheObserver]

That's all you need to do: 1, Open BleKeyBoard.ccp in the ESP32_BLE_Keyboard lib 2, change "hid->manufacturer()->setValue(deviceManufacturer);" TO "hid->manufacturer()->setValue(String(deviceManufacturer.c_str()));"

3, change "BLEDevice::init(deviceName);" TO "BLEDevice::init(String(deviceName.c_str()));" Run it again.

[dragon2777]

That's all you need to do: 1, Open BleKeyBoard.ccp in the ESP32_BLE_Keyboard lib 2, change "hid->manufacturer()->setValue(deviceManufacturer);" TO "hid->manufacturer()->setValue(String(deviceManufacturer.c_str()));"

3, change "BLEDevice::init(deviceName);" TO "BLEDevice::init(String(deviceName.c_str()));" Run it again.

amazing. thank you

[icandothat2]

Came here to day this. Lines 105 to 116 should be changed

//!!! THIS IS THE FIX ->add ".c_str()" after deviceName BLEDevice::init(deviceName.c_str()); BLEServer* pServer = BLEDevice::createServer(); pServer->setCallbacks(this);

hid = new BLEHIDDevice(pServer); inputKeyboard = hid->inputReport(KEYBOARD_ID); // <-- input REPORTID from report map outputKeyboard = hid->outputReport(KEYBOARD_ID); inputMediaKeys = hid->inputReport(MEDIA_KEYS_ID);

outputKeyboard->setCallbacks(this);

//!!! THIS IS THE FIX ->add ".c_str()" after deviceManufacturer

hid->manufacturer()->setValue(deviceManufacturer.c_str());