if (backend == null) {
final String message = "No backend with the required "
+ "version could be found. Can't build.";
MarkerUtils.createProblemMarker(project, null, message, 0,
IMarker.SEVERITY_ERROR);
throw new BackendException(message);
}
final ErlangEventHandler handler = new BuilderEventHandler(backend.getName(),
notifier, project, state);
backend.getNodeProxy().registerEventListener(handler);