error: 'ringbuf_type_t' has not been declared

[PuneetDadhich]

Arduino\libraries\ESP32_BLE_Arduino\src/FreeRTOS.h:61:28: error: 'ringbuf_type_t' has not been declared
  Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT);
                            ^~~~~~~~~~~~~~
Multiple libraries were found for "BLEDevice.h"

[chegewara]

Did you try to search for this in other issues?

[Haydnoleson]

I had the same issue, then I deleted the ESP32_BLE_ARDUINO folder in the libraries and problem solved. The necessary BLEDevice library is included in the arduino libraries already.

[vishnumaiea]

I had the same issue, then I deleted the ESP32_BLE_ARDUINO folder in the libraries and problem solved. The necessary BLEDevice library is included in the arduino libraries already.

I was getting same error with DFRobot Firebeetle-ESP32-E board. Deleted the ESP32_BLE_ARDUINO library and the code got compiled. Thanks :)

[orion253]

I had the same issue, then I deleted the ESP32_BLE_ARDUINO folder in the libraries and problem solved. The necessary BLEDevice library is included in the arduino libraries already.

Where did you delete it from? When I delete this folder in my Documents/Arduino/libraries , I get the following error:

Compilation error: BLEDevice.h: No such file or directory

Anyone can help? I need to finish a project for uni and this is a key step :(

[vishnumaiea]

@orion253 If there are conflicting libraries with the same header file names, we need to delete the unwanted ones from the "libraries" folder in order to force the Arduino IDE to use the correct library. Arduino IDE gives no control over the library name, version, or author. If you are using ESP32 boards from DFRobot, then you need to delete any other BLE libraries from the "libraries" folder. That is because the DFRobot board installation comes with its own BLE libraries that are not fully compatible with other ones.

If you are getting a BLEDevice.h missing error, that means the compiler could not find a suitable BLE library anywhere. Try to install a compatible BLE library for the board you are using.

[orion253]

@orion253 If there are conflicting libraries with the same header file names, we need to delete the unwanted ones from the "libraries" folder in order to force the Arduino IDE to use the correct library. Arduino IDE gives no control over the library name, version, or author. If you are using ESP32 boards from DFRobot, then you need to delete any other BLE libraries from the "libraries" folder. That is because the DFRobot board installation comes with its own BLE libraries that are not fully compatible with other ones.

If you are getting a BLEDevice.h missing error, that means the compiler could not find a suitable BLE library anywhere. Try to install a compatible BLE library for the board you are using.

That helps a lot, thank you @vishnumaiea !
By any chance, have you come across a tutorial online to learn BLE on Arduino IDE? I'm trying to convert the data from integers to byte arrays before sending it to the phone, and can't seem to find online resources that don't rely on the espressif IDF ?

Thanks!

[reno1756]

I had the same issue, then I deleted the ESP32_BLE_ARDUINO folder in the libraries and problem solved. The necessary BLEDevice library is included in the arduino libraries already.

Where did you delete it from? When I delete this folder in my Documents/Arduino/libraries , I get the following error:

Compilation error: BLEDevice.h: No such file or directory

Anyone can help? I need to finish a project for uni and this is a key step :(

I removed all libraries the ESP32 BLE. After that I install again board ESP32 and Didn't install the ESP32 BLE library. I uploaded the program server again and it worked.

[JebilonRix]

It is worked.

[cwoodhouse]

I could never get it to work using an M5-Stack Atom Lite.

[Mr-KID-github]

First , you need to delect the ESP32_BLE_Arduino library,
then, you need to select suitable version,
in fact , Version 2.0.11 of esp32 is available

[JulianneJager]

I have been agonizing over this issue for hours:

In file included from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEAdvertising.h:15,
from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEServer.h:19,
from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEDevice.h:18,
from C:\Users\julia.DESKTOP-TSHJUVK\AppData\Local\Temp.arduinoIDE-unsaved2024214-29068-1g44lkb.7pik\BLE_notify\BLE_notify.ino:22:
c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/FreeRTOS.h:61:28: error: 'ringbuf_type_t' has not been declared
Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT);
^~~~~~~~~~~~~~

Using library ESP32 BLE Arduino at version 1.0.1 in folder: C:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino
exit status 1

Compilation error: exit status 1

From what I see, others have solved it by deleting ESP32_BLE_Arduino and reinstalling it, but that hasn't changed anything for me. I've even tried deleting Arduino IDE and reinstalling an older version. That didn't work either. I tried deleting the FreeRTOS package from the library, but caused issues with dependencies so I reinstalled it again. Does anyone have other suggestions?

I want to connect my ESP32 WROOM to an apple phone. Is there another library that I could use instead?

[StultusRex]

I have been agonizing over this issue for hours:

In file included from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEAdvertising.h:15,
from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEServer.h:19,
from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEDevice.h:18,
from C:\Users\julia.DESKTOP-TSHJUVK\AppData\Local\Temp.arduinoIDE-unsaved2024214-29068-1g44lkb.7pik\BLE_notify\BLE_notify.ino:22:
c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/FreeRTOS.h:61:28: error: 'ringbuf_type_t' has not been declared
Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT);
^~~~~~~~~~~~~~
Using library ESP32 BLE Arduino at version 1.0.1 in folder: C:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino
exit status 1
Compilation error: exit status 1

From what I see, others have solved it by deleting ESP32_BLE_Arduino and reinstalling it, but that hasn't changed anything for me. I've even tried deleting Arduino IDE and reinstalling an older version. That didn't work either. I tried deleting the FreeRTOS package from the library, but caused issues with dependencies so I reinstalled it again. Does anyone have other suggestions?

I want to connect my ESP32 WROOM to an apple phone. Is there another library that I could use instead?

had the same issue, what I did to make it work were:
1st - I re-installed my ESP32 board, through the boards manager.
2nd - uninstall/delete the ESP32_BLE_Arduino library and also the ArduinoBLE library. For the ArduinoBLE package, I just moved it outside my library folder just incase I'll be needing it in the future.

[ManKhunt]

I have been agonizing over this issue for hours:

In file included from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEAdvertising.h:15,
from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEServer.h:19,
from c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/BLEDevice.h:18,
from C:\Users\julia.DESKTOP-TSHJUVK\AppData\Local\Temp.arduinoIDE-unsaved2024214-29068-1g44lkb.7pik\BLE_notify\BLE_notify.ino:22:
c:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino\src/FreeRTOS.h:61:28: error: 'ringbuf_type_t' has not been declared
Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT);
^~~~~~~~~~~~~~
Using library ESP32 BLE Arduino at version 1.0.1 in folder: C:\Users\julia.DESKTOP-TSHJUVK.arduinoIDE\libraries\ESP32_BLE_Arduino
exit status 1
Compilation error: exit status 1

From what I see, others have solved it by deleting ESP32_BLE_Arduino and reinstalling it, but that hasn't changed anything for me. I've even tried deleting Arduino IDE and reinstalling an older version. That didn't work either. I tried deleting the FreeRTOS package from the library, but caused issues with dependencies so I reinstalled it again. Does anyone have other suggestions?
I want to connect my ESP32 WROOM to an apple phone. Is there another library that I could use instead?

had the same issue, what I did to make it work were: 1st - I re-installed my ESP32 board, through the boards manager. 2nd - uninstall/delete the ESP32_BLE_Arduino library and also the ArduinoBLE library. For the ArduinoBLE package, I just moved it outside my library folder just incase I'll be needing it in the future.

Hi @StultusRex

as you mentioned your ans. Like that i done in my system/Arduino IDE, but after doing all things i got "BLEDevice.h" error.
Error :- "BLESDevice.h" No such directory.

for this if you have any solution then let suggest and I'll work on it, try to resolve my errors.
thank you