Hello,
Starting this weekend, our CI compiling bluetooth examples on esp32 with arduino framework through platformio started failing because of a missing BluetoothSerial.h library header.
Now, I checked and the library itself doesn’t seem to have changed in this regard. So I tested further, with Platformio v6.1.13 that I still have on my machine, I do not have this issue.
The issue only arises with Platformio v6.1.14 that the CI gets through https://raw.githubusercontent.com/platformio/platformio-core-installer/master/get-platformio.py
The .ini file would be (zenoh-pico is resolved with a symbolic link to my local repo version):
[env:esp32thing_plus]
platform = espressif32
board = esp32thing_plus
framework = arduino
lib_deps = zenoh-pico
build_flags=
-DZENOH_DEBUG=0
-DZENOH_COMPILER_GCC=1
-DZ_FEATURE_LINK_BLUETOOTH=1
The main file (and the zenoh-pico library) can be found here: zenoh-pico/examples/arduino/z_pub.ino at main · eclipse-zenoh/zenoh-pico · GitHub
Well the PIO core definitely explicitly ignores the libraries in that manifest
PACKAGES:
- framework-arduinoespressif32 @ 3.20014.231204 (2.0.14)
- tool-esptoolpy @ 1.40501.0 (4.5.1)
- toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 34 compatible libraries
Scanning dependencies...
Warning: Ignored `BluetoothSerial` dependency for `zenoh-pico` library
Warning: Ignored `FreeRTOS` dependency for `zenoh-pico` library
That were declared in
Two possibilites: The dependencies statement in that libary.json is wrong or the PIO core is wrong.
Just FYI, the Arduino-ESP32 2.0.14 framework declares the built in BluetoothSeriael library to be of version 2.0.0.
and FreeRTOS as a “Arduino library” doesn’t exist, it’s built in directly. So not sure what FreeRTOS 1.0.0 is referencing.
Also note that lib_deps = zenoh-pico will give you an older 0.7.0-rc version since no other version is listed in the PIO registry. You might want to use lib_deps = https://github.com/eclipse-zenoh/zenoh-pico/archive/refs/tags/0.10.1-rc.zip or similar.
In any case though, setting lib_ldf_mode = deep+ fixes compilation for the latest PlatformIO core. So with respect to the last PIO core version, some intricate detail might have changed about the default library detection.
Sorry I forgot to mention, for the lib_deps = zenoh-pico I then create a symbolic link in the lib/ folder of the platformio project towards my local zenoh-pico repository, which no longer contains the file you’re mentioning.
Ok thanks for the lib_ldf_mode = deep+, tip it does fixes compilation, but I’m wondering why it is now necessary.