As of September 2021, we have moved technical support to Robolink Help
Welcome to the Robolink Community forum!
You can post here to interact with others in the Robolink community. We're checking it weekly, and we'll respond to some messages. If you're looking for technical support, head over to Robolink Help.
Arduino Issues with Mac OS Catalina
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If you have recently updated to Catalina you will need to get this version for Arduino:
http://downloads.arduino.cc/javaide/pull_requests/arduino-PR-8976-BUILD-869-macosx.zip