GWT Compiler Error: Missing Interface Methods on Subclass (PlayN HTML)
Disclaimer: I'm new to GWT/PlayN, so this might be an obvious mistake that I'm making. When I have a basic (starter) PlayN project, my BlahGame class method implements the Game interface, which requires three methods: init , paint , and update . The starter class looks something like: public class BlahGame implements Game { public void init() { ... } public void paint(float alpha) { ... } public void update(float alpha) { ... } } I created a BaseGame class to implement game, like so: public class BaseGame implements Game { public void init() { ... } public void paint(float alpha) { ... }