Telegramcertificate.h error

Projects Programming
1

I'd apologise in advance if I'm missing/messing up something obvious since I'm very new to Arduino developement.

I'm trying to setup a Wake On LAN using esp32 and this is the error I get
I've tried updating Json library, as well as downgrading it. Deleting telegramcertificate.h seems to fix the compiling error but now my board can't communicate with my telegram bot.
I've verified that its not an issue with my board since it can connect and communicate with telegram when I use a different sketch.

This is the error message

In file included from c:\Users\hellb\Documents\Arduino\libraries\UniversalTelegramBot\src/UniversalTelegramBot.h:31,
from C:\Users\hellb\AppData\Local\Temp.arduinoIDE-unsaved2025319-18148-12hv1da.bui3\sketch_apr19e\sketch_apr19e.ino:4:
c:\Users\hellb\Documents\Arduino\libraries\UniversalTelegramBot\src/TelegramCertificate.h:9:12: error: redefinition of 'const char TELEGRAM_CERTIFICATE_ROOT []'
9 | const char TELEGRAM_CERTIFICATE_ROOT[] = R"=EOF=(
| ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from C:\Users\hellb\AppData\Local\Temp.arduinoIDE-unsaved2025319-18148-12hv1da.bui3\sketch_apr19e\sketch_apr19e.ino:3:
c:\Users\hellb\Documents\Arduino\libraries\UniversalTelegramBot\src/TelegramCertificate.h:9:12: note: 'const char TELEGRAM_CERTIFICATE_ROOT [1369]' previously defined here
9 | const char TELEGRAM_CERTIFICATE_ROOT[] = R"=EOF=(
| ^~~~~~~~~~~~~~~~~~~~~~~~~
exit status 1

Compilation error: exit status 1
2

The error message is easier to understand if you remove the paths

In file included from UniversalTelegramBot.h:31,
from sketch_apr19e.ino:4:
TelegramCertificate.h:9:12: error: redefinition of 'const char TELEGRAM_CERTIFICATE_ROOT []'
9 | const char TELEGRAM_CERTIFICATE_ROOT[] = R"=EOF=(
| ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from sketch_apr19e.ino:3:
TelegramCertificate.h:9:12: note: 'const char TELEGRAM_CERTIFICATE_ROOT [1369]' previously defined here
9 | const char TELEGRAM_CERTIFICATE_ROOT[] = R"=EOF=(
| ^~~~~~~~~~~~~~~~~~~~~~~~~
exit status 1

redefinition: line 3 of your .ino includes TelegramCertificate.h. Then line 4 of the .ino includes UniversalTelegramBot.h, which also includes the same header, TelegramCertificate.h. If you look at that latter header file, it has no include guards; it is not safe to include more than once.

So delete line 3.

3

Verify universal telegram library is up-to-date.