Redboard Nano not compiling

Development Boards Artemis
1

I am having problems just getting started with the Redboard Artemis Nano (and similarly for the Artemis ATP). I have followed all the directions for installing the Arduino Core for Apollo3, and have installed version 2.0.2, but when I try to compile (not even upload) any sketch, even the basic blink sketch I get the error message:

Board sfe_artemis_nano (platform apollo3, package SparkFun) is unknown

Error compiling for board RedBoard Artemis Nano.

or for the Artemis ATP:

Board sfe_artemis_atp (platform apollo3, package SparkFun) is unknown

Error compiling for board RedBoard Artemis ATP.

I am using Arduino on a Mac book pro. Any suggestions would be appreciated.

2

Can you please try reverting to previous versions of the Apollo3 core and/or the Arduino IDE (if you’re using Arduino 1.8.13)?