@NotNull
  public Notification notifyError(@NonNls @Nullable String displayId,
                                  @NotificationTitle @NotNull String title,
                                  @NotificationContent @NotNull String message,
                                  @Nullable NotificationListener listener) {
    return notify(importantNotification(), displayId, title, message, NotificationType.ERROR, listener);
  }
@NotNull
  public Notification notifyError(@NonNls @Nullable String displayId,
                                  @NotificationTitle @NotNull String title,
                                  @NotificationContent @NotNull String message,
                                  @Nullable NotificationListener listener)