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!

9

Hi. Fish here. Having the same issue with WiFiManager but when I type
" pio pkg update -g -p espressif32" I get the following message:
“UnknownPackageError: Could not find the package with ‘espressif32.’ requirements for your system ‘windows_amd64’”

any idea what that means?

Thanks!
Fish

10

There is no . in the platform name.

11

It ran but seems everything was already up to date.

PS C:\Users\Mark\Documents\Source\PlatformIO\DigitalWatch> pio pkg update -g -p espressif32
Platform Manager: espressif32@6.3.2 is already up-to-date
Tool Manager: framework-arduinoespressif32@3.20009.0 is already up-to-date
Tool Manager: tool-esptoolpy@1.40501.0 is
already up-to-date
Tool Manager: tool-mkfatfs@2.0.1 is already up-to-date
Tool Manager: tool-mklittlefs@1.203.210628 is already up-to-date
Tool Manager: tool-mkspiffs@2.230.0 is already up-to-date
Tool Manager: tool-openocd-esp32@2.1100.20220706 is already up-to-date
Tool Manager: toolchain-riscv32-esp@8.4.0+2021r2-patch5 is already up-to-date
Tool Manager: toolchain-xtensa-esp32@8.4.0+2021r2-patch5 is already up-to-date
Tool Manager: toolchain-xtensa-esp32s3@8.4.0+2021r2-patch5 is already up-to-date

Makes sense since I installed like 6 months ago. BUT it is still having an issue with WiFiManager.
When compiling I get:
fatal error: ESP8266WiFi.h: No such file or directory
Compiling .pio\build\lolin_c3_mini\FrameworkArduino\esp32-hal-i2c.c.o
*** [.pio\build\lolin_c3_mini\src\main.cpp.o] Error 1
*** [.pio\build\lolin_c3_mini\lib0f9\WiFiManager\WiFiManager.cpp.o] Error 1
======= [FAILED] Took 8.16 seconds =======

Could this be specific to the esp32-C3?

Fish

oh, it also says:

  • Looking for ESP8266WiFi.h dependency? Check our library registry!
  • CLI > platformio lib search “header:ESP8266WiFi.h”
  • Web > PlatformIO Registry

finally…I read this post but wasn’t sure what it meant:WiFImanager esp32-s2 and s3 - #4 by ambadatusername

12

…why is that library trying to access the ESP8266 WiFi library when you configured it for a ESP32 board? Can you please show your full platformio.ini and minimal code example?

13

Sure this is my .ini:

[[env:lolin_c3_mini]
platform = espressif32
board = lolin_c3_mini
framework = arduino
lib_deps =
fbiego/ESP32Time@^2.0.0
olikraus/U8g2@^2.34.13
lennarthennigs/Button2@^2.2.2
adafruit/RTClib@^2.1.1
tzapu/WiFiManager@^0.16.0
upload_protocol = esp-builtin
debug_tool = esp-builtin
monitor_speed = 115200

in my main.cpp:
#include <Arduino.h>
#include <ESP32Time.h>
#include “RTClib.h” //This is a local version of the Library with alarmIsEnabled();
#include <U8g2lib.h>
#include <Button2.h>
#include <WiFiManager.h>
#include “CustomFonts.h”
#include “Bitmaps.h”

I get the error simply when adding the #include
in WiFiManager.h are the lines
#ifndef WiFiManager_h
#define WiFiManager_h
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include

so the error is flagging those lines from WiFiManager.h header for the library

14

You can’t really use the PIO registry version here because it’s 3 years outdated. Replace that with a direct download link of

   https://github.com/tzapu/WiFiManager/archive/refs/heads/master.zip
15

Hey max…sorry for the silence, I had to run an errand. So I install the latest version of the library then?

16

o.k. That version worked! Max, you are the BEST! I owe you a beer.

So is there a way we can request PIO update to their registry?

Fish