12#warning It seems, that you are using an old version 2.0 code / example.
13#warning This version is no longer supported!
14#warning Upgrade instructions can be found here: https://github.com/Arduino-IRremote/Arduino-IRremote?tab=readme-ov-file#converting-your-2x-program-to-the-4x-version
15#warning Please use one of the new code examples from the library, available at "File > Examples > Examples from Custom Libraries / IRremote".
16#warning Start with the SimpleReceiver or SimpleSender example.
17#warning The examples are documented here: https://github.com/Arduino-IRremote/Arduino-IRremote?tab=readme-ov-file#examples-for-this-library
18#warning Or just downgrade your library to version 2.6.0.