BLE-MIDI/src/hardware/BLEMIDI_ESP32_NimBLE.h compile error

[RCPilot1604]

Attempted to compile a previously working piece of code which now produces the following compilation error.
The error is in line 144 and 145 of Arduino-BLE-MIDI/src/hardware/BLEMIDI_ESP32_NimBLE.h.

I suspect that there was a migration of the h2zero/NimBLE-Arduino library, causing the code to break.

In file included from src/main.cpp:4:
.pio/libdeps/esp32doit-devkit-v1/BLE-MIDI/src/hardware/BLEMIDI_ESP32_NimBLE.h: In member function 'bool bleMidi::BLEMIDI_ESP32_NimBLE::begin(const char*, bleMidi::BLEMIDI_Transport<bleMidi::BLEMIDI_ESP32_NimBLE>*)':
.pio/libdeps/esp32doit-devkit-v1/BLE-MIDI/src/hardware/BLEMIDI_ESP32_NimBLE.h:144:26: error: expected type-specifier before 'NimBLESecurity'
  144 |     auto _security = new NimBLESecurity();
      |                          ^~~~~~~~~~~~~~
.pio/libdeps/esp32doit-devkit-v1/BLE-MIDI/src/hardware/BLEMIDI_ESP32_NimBLE.h:145:38: error: 'ESP_LE_AUTH_BOND' was not declared in this scope
  145 |     _security->setAuthenticationMode(ESP_LE_AUTH_BOND);
      |                                      ^~~~~~~~~~~~~~~~
*** [.pio\build\esp32doit-devkit-v1\src\main.cpp.o] Error 1

[spDuchamp]

I can confirm I'm having the exact same problem, and when I roll back to version 2.1.0, the project compiles just fine.

[MicroMidi]

May I ask if there will be a new official release of this brilliant library that leverages the features of the new major NimBLE 2.x.x version? Thanks in advance🙏

[lathoub]

Hi @MicroMidi et al - good question. An official release of this library is difficult, as it relies on calls in the underlying MIDI library that have not been rolled up in a release. It has been in the air for a while, but we (@FortySevenEffects (*) and myself) have to organize a 'release party' to align all the releases of the libraries again (the base libraries and all the derived protocols). Maybe this is a good trigger for a concerted effort.

[MicroMidi]

Hi @lathoub,
thank you for your reply. I wasn't aware of all the dependencies that need to be considered in order to have the furious “release party”. It would be really great to have an updated state of the art BLE-MIDI library, as the hard work you and the other library owners have put into developing these libraries will be carried into the future. Right now, users have to struggle with different library versions to find a solution that works for their project. And I'm pretty sure your user base is quite large.

Thanks again for your hard work and for your great contribution to the Arduino ESP32 community

Bernd

[lathoub]

Problem fixed in master branch.
but... I do not have hardware to test for the moment, so please test for me!

the main security settings are

Arduino-BLE-MIDI/src/hardware/BLEMIDI_ESP32_NimBLE.h

Line 142 in 2e4b39f

NimBLEDevice::setSecurityAuth(true, false, false);

parameters described here:

Please let me know if this fix works