GPIO Viewer fails to compile.

[heinzight]

Would someone be so kind as to please explain to me why I'm getting this error message:

In file included from c:\Users\16508\Documents\Arduino\libraries\GPIOViewer\src/gpio_viewer.h:7,
from C:\Users\16508\Documents\Arduino\gpioviewer\gpioviewer.ino:17:
c:\Users\16508\Documents\Arduino\libraries\ESP_Async_WebServer\src/ESPAsyncWebServer.h: In member function 'tcp_state AsyncWebServer::state() const':
c:\Users\16508\Documents\Arduino\libraries\ESP_Async_WebServer\src/ESPAsyncWebServer.h:1107:49: error: passing 'const AsyncServer' as 'this' argument discards qualifiers [-fpermissive]
1107 | return static_cast<tcp_state>(_server.status());
| ~~~~~~~~~~~~~~^~
In file included from c:\Users\16508\Documents\Arduino\libraries\ESP_Async_WebServer\src/ESPAsyncWebServer.h:19:
c:\Users\16508\Documents\Arduino\libraries\AsyncTCP\src/AsyncTCP.h:198:13: note: in call to 'uint8_t AsyncServer::status()'
198 | uint8_t status();
| ^~~~~~
exit status 1

Compilation error: exit status 1

Same error on Wemos D1 R32 and ESP32S2DevKit v1.0 (SOLO). BLINK works.
ESP32Async/AsyncTCP 3.4.1
ESP Async WebServer 3.7.7
GPIOViewer 1.6.3
Win 10/64
Arduino IDE 2.3.6

Please help, I want to use this tool...

[Bwanna]

Am receiving the same Error for the ESP32DevMod

Following

[thelastoutpostworkshop]

Make sure you are using v3.2.0 of the expressif boards in the board manager.