Hi everyone
My question is that the latest version does not work with Catalina
What is the cause?
It may be the problem that the Arduino for Mac is 32 bits and Calatina is 64 bits but now I know that it does not accept all 32-bit programs.
When can there be a solution?
Thank you
Latest version of the Arduino IDE fixes this. Be sure to use board manager to make sure that you are also using the latest version of official AVR board package (if you have previously used board manager to upgrade/downgrade the avr board package, that version will be used in preference to the default version for the version of the IDE you are using). I think both avr board package and IDE need to be latest version; not certain about the IDE itself, though.