On 11/21/18 8:21 AM, Jon Ingason wrote:
I need to download firmware for my 3D printer (K8000) with Arduino IDE
1.0.6 since Arduino IDE 1.8.5 won't work. I downloaded Arduino IDE 1.0.6
from Arduinos' website. When I start Adruino IDE I get following:
arduino-1.0.6]$ ./arduino
Exception in thread "main" java.lang.ExceptionInInitializerError
at processing.app.Preferences.setColor(Preferences.java:863)
at processing.app.Preferences.init(Preferences.java:274)
at processing.app.Base.main(Base.java:117)
Caused by: java.awt.HeadlessException
You only have the headless Java installed, install "java-openjdk".
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