问登录时70004错误，请问如何解决？

登录时70004错误，请问如何解决？ int appid=1400003727; String accountType="1936"; String identifier="user1"; String userSig="aaaaaa"; TIMUser user = new TIMUser(); user.setAccountType(accountType); user.setAppIdAt3rd(appid+""); user.setIdentifier(identifier); TIMManager manager= TIMManager.getInstance(); manager.init(this.getApplicationContext()); // 发起到IM后台登录请求 manager.login(appid, user, userSig, new TIMCallBack() {// 回调接口 @Override public void onSuccess() {// 登录成功 System.out.println("IMServer登录成功" ); } @Override public void onError(int code, String desc) { System.out.println("IMServer登录失败:" + code + ":" + desc); } });