Compile errors on SimpleTX sketch

[Lesateq]

Hello, perhaps a silly question, but I am not a highly experienced programmer. I want to compile SimpleTX sketch in Arduino IDE. The board I use is NodeMcu ESP-32 Wroom and the selected board in Arduino IDE is "ESP32 Dev Module". Other sketches compile well using this environment, but SimpleTX sketch generates errors. See attached file. Error_message.txt Do I miss an essential header file with the missing definitions? Thanks in advance.