Missing paths with WifiManager.h on ESP32 w/ Arduino

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#1

Hi!
I am trying to compile a simple program using the Wifimanager library but there are some missing dependencies, a bunch of #include’s are not working in the WifiManager file.

After finding this thread I set my platformio.ini this way:

lib_deps =
    Wire
    https://github.com/tzapu/WiFiManager.git
    ; https://github.com/tzapu/WiFiManager.git@^2.0.5-beta ; ESP32 wifi credentials portal

Ive tried both versions but no difference. I get an error

In file included from src\main.cpp:3:0:
.pio\libdeps\esp32thing_plus\WiFiManager/WifiManager.h:153:37: fatal error: esp_arduino_version.h: No such file 
or directory

This is under the section

#ifdef Arduino_h
    #ifdef ESP32

of the wifimanager.h file so its a good sign, but where am I supposed to find the dependencies to those missing files? Seems like they have to do with esp32 arduino library, but I cant find anything online…
Thanks!!

#2

This file exists in Arduino-ESP32 since 2.0.0:

If you get the error, this shows that you haven’t updated your Espressif32 platform or are forcing an older version in the platformio.ini. Per Releases · platformio/platform-espressif32 · GitHub, try explicity setting platform = espressif32@5.2.0 to get Arduino-ESP32 2.0.5 which of course includes that file.

If you want to update your existing installation, you can for example do it via the PIO Home GUI or the CLI → pio pkg update -g -p espressif32.

1 Like
#3

As always, you are here to save the day. Thank you so much!

#4

Update: It fixed the issue when testing in a small project, but I still get this error in my main project:

Building .pio\build\esp32thing_plus\bootloader.bin
Generating partitions .pio\build\esp32thing_plus\partitions.bin
esptool.py v4.2.1
Creating esp32 image...
Merged 1 ELF section
Successfully created esp32 image.
Compiling .pio\build\esp32thing_plus\libeb1\Wire\Wire.cpp.o
Compiling .pio\build\esp32thing_plus\lib4fa\WiFi\WiFi.cpp.o
Compiling .pio\build\esp32thing_plus\lib4fa\WiFi\WiFiAP.cpp.o
In file included from src/test/main_WifiManager.cpp:4:
.pio/libdeps/esp32thing_plus/WiFiManager/WiFiManager.h:87:14: fatal error: Update.h: No such file or directory

I wonder if I need to uninstall stuff since its an older project? I tried deleting the libdeps wifimanager folder but after it reinstalls it the same error occurs…

My next step would be do delete everything from platformIO but I am not too sure where all of the cached data for the extension is located…

#5

Does the dependency graph at the beginning of the project detect a dependency from WiFiManager to the Update library? Have you tried removing the .pio folder to force a clean redowload of the libraries?

#6

Yes it does, and I tried deleting the .pio folder but no success :frowning:

I tried removing all my source and header files except main.cpp, and removed all libraries from lib_deps except for WifiManager.h to see if I could isolate the problem, and now I get Wifi.h: no such file or directory so I wonder if this may mean my arduino-espressif32 core is corrupted.

So I tried updating it with these commands

pio upgrade --dev
pio platform update espressif32

But still Wifi.h isn’t found

Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32thing_plus.html
PLATFORM: Espressif 32 (5.2.0) > SparkFun ESP32 Thing Plus
HARDWARE: ESP32 240MHz, 320KB RAM, 16MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
PACKAGES:
 - framework-arduinoespressif32 @ 3.20005.220925 (2.0.5)
 - tool-esptoolpy @ 1.40201.0 (4.2.1) 
 - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 34 compatible libraries
Scanning dependencies...
Dependency Graph
|-- Wire @ 2.0.0
|-- WiFiManager @ 2.0.13-beta+sha.476952c
Building in release mode
Compiling .pio\build\esp32thing_plus\src\test\main_WifiManager.cpp.o
Building .pio\build\esp32thing_plus\bootloader.bin
Generating partitions .pio\build\esp32thing_plus\partitions.bin
esptool.py v4.2.1
Creating esp32 image...
Merged 1 ELF section
Successfully created esp32 image.
Compiling .pio\build\esp32thing_plus\libeb1\Wire\Wire.cpp.o
Compiling .pio\build\esp32thing_plus\libd10\WiFiManager\WiFiManager.cpp.o
In file included from .pio/libdeps/esp32thing_plus/WiFiManager/WiFiManager.cpp:13:
.pio/libdeps/esp32thing_plus/WiFiManager/WiFiManager.h:85:14: fatal error: WiFi.h: No such file or directory

**************************************************************
* Looking for WiFi.h dependency? Check our library registry!
*
* CLI  > platformio lib search "header:WiFi.h"
* Web  > https://registry.platformio.org/search?q=header:WiFi.h
*
**************************************************************

     #include <WiFi.h>
              ^~~~~~~~
compilation terminated.
Compiling .pio\build\esp32thing_plus\FrameworkArduino\Esp.cpp.o
Compiling .pio\build\esp32thing_plus\FrameworkArduino\FirmwareMSC.cpp.o
*** [.pio\build\esp32thing_plus\libd10\WiFiManager\WiFiManager.cpp.o] Error 1
========================================= [FAILED] Took 12.95 seconds =========================================

This is my .ini file …

[env:esp32thing_plus]
framework = arduino
board = esp32thing_plus
platform = espressif32
monitor_filters = esp32_exception_decoder

lib_deps = 
	Wire ; Required for Wifi.h https://community.platformio.org/t/why-is-wifi-h-not-found-by-compiler/21641/12
	https://github.com/tzapu/WiFiManager.git

I wonder if you know something I don’t? Maybe there is another way I can investigate if my arduino / esp32 core is corrupt? But I doubt it’s actially the case because if I create a new project within PIO with a ESP32 as target board (the same as my current failing project), it actually compiles…

Thanks again for your help…

#7

The project uses conditional defines.

So try setting

lib_ldf_mode = chain+

(docs)

#8

I put your 1st comment as solution as this is what solved the original issue. But for my project I was struggling with, It is because the source file that included WifiManager.h was in a directory called src/test and it appears like it could not include it properly. I ended up just moving it to src and it builds fine…
Thank you for your help, I still learned about a few PIO commands and .ini settings because of this!