import org.asamk.signal.manager.AttachmentInvalidException;
import org.asamk.signal.manager.Manager;
import org.asamk.signal.manager.api.SendGroupMessageResults;
+import org.asamk.signal.manager.api.UnregisteredRecipientException;
import org.asamk.signal.manager.api.UpdateGroup;
import org.asamk.signal.manager.groups.GroupId;
import org.asamk.signal.manager.groups.GroupLinkState;
throw new UserErrorException("Failed to add avatar attachment for group\": " + e.getMessage());
} catch (GroupNotFoundException | NotAGroupMemberException | GroupSendingNotAllowedException e) {
throw new UserErrorException(e.getMessage());
+ } catch (UnregisteredRecipientException e) {
+ throw new UserErrorException("The user " + e.getSender().getIdentifier() + " is not registered.");
} catch (IOException e) {
throw new UnexpectedErrorException("Failed to send message: " + e.getMessage() + " (" + e.getClass()
.getSimpleName() + ")", e);