Crash on iOS

[RafaRuiz]

Hello. I'm using:

Future<void> fit() async {
  List<DataType> dataTypes = [DataType.STEP_COUNT, DataType.ENERGY];
  if (await FitKit.requestPermissions(dataTypes)) {
    for (DataType type in dataTypes) {
      final results = await FitKit.read(
        type,
        dateFrom: Jiffy().subtract(days: 1),
        dateTo: DateTime.now(),
      );
    }
  }
}

and it crashes for iOS right in await FitKit.requestPermissions(dataTypes)

The log I have from the simulator is:

2020-01-25 19:03:03.857700+0100 Runner[71026:823677] -[__NSCFBoolean hk_isValidPurposeString]: unrecognized selector sent to instance 0x7fff8061ea08
2020-01-25 19:03:03.877971+0100 Runner[71026:823677] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFBoolean hk_isValidPurposeString]: unrecognized selector sent to instance 0x7fff8061ea08'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff23c7127e __exceptionPreprocess + 350
1 libobjc.A.dylib 0x00007fff513fbb20 objc_exception_throw + 48
2 CoreFoundation 0x00007fff23c91fd4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x00007fff23c75c4c forwarding + 1436
4 CoreFoundation 0x00007fff23c77f78 _CF_forwarding_prep_0 + 120
5 HealthKit 0x00007fff25aa522e -[HKHealthStore _validateHealthDataPurposeStringsForSharingTypes:readingTypes:isResearchStudy:] + 885
6 HealthKit 0x00007fff25aa4bd7 -[HKHealthStore _validatePurposeStringsForSharingTypes:readingTypes:] + 384
7 HealthKit 0x00007fff25aa43c2 -[HKHealthStore requestAuthorizationToShareTypes:readTypes:shouldPrompt:completion:] + 354
8 HealthKit 0x00007fff25aa412e -[HKHealthStore requestAuthorizationToShareTypes:readTypes:completion:] + 77
9 fit_kit 0x0000000110ca82b4 $s7fit_kit17SwiftFitKitPluginC20requestAuthorization33_B5B63DA1CEDF30F36A7BBB05B461F1D3LL11sampleTypes10completionySaySo12HKSampleTypeCG_ySb_So12FlutterErrorCSgtctF + 756
10 fit_kit 0x0000000110ca79e2 $s7fit_kit17SwiftFitKitPluginC18requestPermissions33_B5B63DA1CEDF30F36A7BBB05B461F1D3LL0G06resultyAA0H7RequestC_yypSgctF + 146
11 fit_kit 0x0000000110ca5e12 $s7fit_kit17SwiftFitKitPluginC6handle_6resultySo17FlutterMethodCallC_yypSgctF + 1154
12 fit_kit 0x0000000110ca694b $s7fit_kit17SwiftFitKitPluginC6handle_6resultySo17FlutterMethodCallC_yypSgctFTo + 139
13 Flutter 0x000000010ec2533b __45-[FlutterMethodChannel setMethodCallHandler:]_block_invoke + 104
14 Flutter 0x000000010ebb6130 _ZNK7flutter21PlatformMessageRouter21HandlePlatformMessageEN3fml6RefPtrINS_15PlatformMessageEEE + 166
15 Flutter 0x000000010ebb9bde _ZN7flutter15PlatformViewIOS21HandlePlatformMessageEN3fml6RefPtrINS_15PlatformMessageEEE + 38
16 Flutter 0x000000010ec1e64d _ZNSt3__110__function6__funcIZN7flutter5Shell29OnEngineHandlePlatformMessageEN3fml6RefPtrINS2_15PlatformMessageEEEE4$_32NS_9allocatorIS8_EEFvvEEclEv + 57
17 Flutter 0x000000010ebc9cd7 _ZN3fml15MessageLoopImpl10FlushTasksENS_9FlushTypeE + 117
18 Flutter 0x000000010ebcea1c ZN3fml17MessageLoopDarwin11OnTimerFireEP16__CFRunLoopTimerPS0 + 26
19 CoreFoundation 0x00007fff23bd4b94 CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION + 20
20 CoreFoundation 0x00007fff23bd4882 __CFRunLoopDoTimer + 1026
21 CoreFoundation 0x00007fff23bd3eda __CFRunLoopDoTimers + 266
22 CoreFoundation 0x00007fff23bcec4e __CFRunLoopRun + 2238
23 CoreFoundation 0x00007fff23bce066 CFRunLoopRunSpecific + 438
24 GraphicsServices 0x00007fff384c0bb0 GSEventRunModal + 65
25 UIKitCore 0x00007fff48092d4d UIApplicationMain + 1621
26 Runner 0x000000010e8730c8 main + 72
27 libdyld.dylib 0x00007fff5227ec25 start + 1
28 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

and this is the crash from a device:

2020-01-25 19:09:48.345991+0100 Runner[392:12243] -[__NSCFBoolean hk_isValidPurposeString]: unrecognized selector sent to instance 0x1d1d655d0
2020-01-25 19:09:48.346631+0100 Runner[392:12243] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFBoolean hk_isValidPurposeString]: unrecognized selector sent to instance 0x1d1d655d0'
*** First throw call stack:
(0x19568b278 0x1953b40a4 0x19558ef94 0x19568f5d8 0x19569110c 0x1a85fe83c 0x1a85fe2b8 0x1a85fdadc 0x1a85fd828 0x100a76540 0x100a75c30 0x100a74108 0x100a74ae4 0x100e677c8 0x100dfdc48 0x100e58324 0x100e0e71c 0x100e10a28 0x1956096cc 0x195609408 0x195608ad8 0x195603c14 0x19560316c 0x19f43b328 0x19966dd0c 0x1009c8cd8 0x19548e424)
libc++abi.dylib: terminating with uncaught exception of type NSException

I'm using an automatic signed certificate and HealthKit is "enabled":