Unable to connect 'thingsboard.cloud'

[ockum12]

I got a ERROR messge.
I/flutter (12221): ERROR ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter (12221): ERROR │ ⛔ Error: ThingsboardError: message: [Unable to connect], errorCode: 2, status: null
I/flutter (12221): ERROR │ ⛔ #0 toThingsboardError (package:thingsboard_pe_client/src/error/_thingsboard_error_handler_io.dart:89:18)
I/flutter (12221): ERROR │ ⛔ #1 HttpInterceptor.onError (package:thingsboard_pe_client/src/interceptor/http_interceptor.dart:104:19)
I/flutter (12221): ERROR │ ⛔ #2 DioMixin.fetch._errorInterceptorWrapper... (package:dio/src/dio_mixin.dart:574:28)
I/flutter (12221): ERROR │ ⛔ #3 DioMixin.checkIfNeedEnqueue (package:dio/src/dio_mixin.dart:789:22)
I/flutter (12221): ERROR │ ⛔ #4 DioMixin.fetch._errorInterceptorWrapper.. (package:dio/src/dio_mixin.dart:572:22)
I/flutter (12221): ERROR │ ⛔ #5 new Future. (dart:async/future.dart:253:37)
I/flutter (12221): ERROR │ ⛔ #6 Timer._createTimer. (dart:async-patch/timer_patch.dart:18:15)
I/flutter (12221): ERROR │ ⛔ #7 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19)
I/flutter (12221): ERROR │ ⛔ #8 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5)
I/flutter (12221): ERROR │ ⛔ #9 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)
I/flutter (12221): ERROR │ ⛔
I/flutter (12221): ERROR └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
My app_constants.dart is
abstract class ThingsboardAppConstants {
static final thingsBoardApiEndpoint = 'https://thingsboard.cloud';

static final thingsboardOAuth2CallbackUrlScheme ='org.thingsboard.pe.app.auth';

/// Not for production (only for debugging)
static final thingsboardOAuth2AppSecret = '';

/// Not for production (only for debugging)
static final thingsboardSignUpAppSecret = '';
}

Do I need more setup on 'thingsboard.cloud'?

[ezeroldan24]

I have the same problem, did you find a solution?

[JuliusHarald]

Any updates on this?

UPDATE:
Nevermind, I had the same error in my flutter app, which uses thingsboard_pe_client. My Problem was, that I forgot to give Internet permission to the app