Testing and Debugging MEF , avoiding misconceptions - Part 3 this is the 3rd post of this series and it will discuss common misconceptions which may lead unexpected behavior and long debugging nights. Initialization issues the first misconception occurs when developer are trying to access imported property at construction time. NullReferenceException [ Export ] public class MyPlugin { public MyPlugin() { // the logger import doesn't satisfied yet // the next line will result with NullReferenceException...