After having upgraded the Arduino IDE from 1.6.x to the current version (1.8.5), I found that the SparkFun addon boards had disappeared from the Boards drop-down. I went to the Boards Manager, and though the SF links were still there, the AVRs did not show as being installed. I installed as usual, after double-checking the github URL with the Hookup guide and observing that the repository appeared to be active quite recently. The boards duly appeared in the Boards drop-down after rebooting the IDE, as expected. However, no sketch will compile (Verify) for Pro Micro. As I'm not trying to Upload, I don't think there can be any hardware problem. Below are links to snips of the Board Manager after installing SF AVR, and the IDE with the error message generated when trying to Verify the IDE Basic Example "Blink". I also include the IDE error messages here as "code":
Code: Select all
Arduino: 1.8.5 (Windows 7), Board: "SparkFun Pro Micro, ATmega32U4 (5V, 16 MHz)"
Board promicro (platform avr, package SparkFun) is unknown
Error compiling for board SparkFun Pro Micro.
I have to wonder if the IDE has changed how addons are handled, as there does not appear to be a hardware folder inside the Arduino sketch folder any more. Any ideas? My sketch folder IS a Dropbox, if that might factor in somehow...