Heltec LoRa - compilation problem

[marmadoc]

I bought set of two Heltec WiFi LoRa Oled V3. Nightmare - always problems. First problem with I2C now LoRa.
I try to run LoRa Sender from arduino example - no way. Whatever I tried doesn’t work.
Every time
error: ‘HELTEC_BOARD’ was not declared in this scope
Mcu.begin(HELTEC_BOARD,SLOW_CLK_TPYE);
error: ‘SLOW_CLK_TPYE’ was not declared in this scope
Mcu.begin(HELTEC_BOARD,SLOW_CLK_TPYE);
Board is Heltec WiFi LoRa 32.
I’m giving up.
Can you help me to solve this problem or should I give up completely.
Thank you

[UniquePete]

It sounds like you are not using the right software. There are many threads now in these forums discussing the relevant issues. Try starting with the discussion in the following thread and the links it provides:

WiFi LoRa 32(V3)

There are many threads on this forum discussing issues with the V3 boards. Perhaps start with this one: and if you need more just search the forum for something like “WiFi LoRa 32 V3”. The most likely reason for your immediate problems is that you do not have the correct software installed, and this subject is discussed, with links to other related threads, in the above. With the correct software installed, there are example sketches provided in the various development platforms that illus…

[marmadoc]

Thank you. I read this thread - now I give up totally. Why is it so complicated.
For me Heltec screwup this totally - it is not for hobbyists but for programmers.
I regret that I bought this.
Again
Thank you and bye bye Heltec.