Hi I'm brand new to Arduino, never installed before and trying to install some boards so I can play with the Adiafruit Playground express.
Here's what I've done:
- Download the Arduino IDE
- Put in the app folder on OSX 10.4.1
- Go to boards manager
- I get the following error in the console:
https://downloads.arduino.cc/packages/package_index.json file signature verification failed. File ignored
Googling didn't not help. Everyone suggested deleting the preferences file, but it was a fresh install! I did try that of course, but no difference. I then tried the beta IDE 1.9.0 same problem.
Any ideas? Not a good experience so far