I'm trying to write a plugin that will send and receive data to KSP via a serial connection. Whenever I initialize the SerialPort though the plugin does not seem to load. If I remove the serialPort line, the debug window spews out "test" as expected. I know people have done this before, but I'm not sure how. [KSPAddon(KSPAddon.Startup.Flight,false)] public class PluginTutorial : MonoBehaviour { private SerialPort serialPort; public void Awake() { serialPort = new SerialPort("COM4", 9600); } public void Start() { } public void Update() { print("test"); } }