Wendall Hanson asked 3 months ago
I have 37 different projects I have built over the past 7 years and am currently using Arduino IDE 1.8.3.
Today I spent about 2 hours recovering from an upgrade to 2.02. None of my older projects would compile.
Thankfully I backed everything up first. I purchased your ESP32 book, but it is not helpful with the older version of the IDE I seemingly MUST retain.
All of my projects use the ATMega328 or the SAMD21. Any answers?
Sara Santos Staff answered 3 months ago
Hi.
The projects should also compile on Arduino IDE 2 as long as you use the same ESP32 core version.
If you go to Tools > Boards > Boards Manager > ESP32 you can check which version of the ESP32 core is being used. If you use the same version of the core, the programs should work.
In the case of Arduino IDE 2, it will always pop-up a message saying a new version of the core is available and you must deny it all the time if you want to keep using the older version.
However, most changes are minimal. Can you give me an example of error you got when trying to compile with the new version?
Regards,
Sara