# ActionLogs

ID: 4B28D3F0-6F5B-495E-AECE-738E5208270F
ModuleName: DeviceVariableListVM
ActionName: InitListVM
ITCode: admin
ActionUrl: /BasicData/DeviceVariable
ActionTime: 2022-04-01 21:41:25.9899853
IP: ::1
Remark:
  System.NullReferenceException: Object reference not set to an instance of an object.
     at IoTGateway.ViewModel.BasicData.DeviceVariableVMs.DeviceVariableListVM.InitListVM() in D:\Repos\iotgateway\IoTGateway.ViewModel\BasicData\DeviceVariableVMs\DeviceVariableListVM.cs:line 50
     at WalkingTec.Mvvm.Core.BasePagedListVM`2.DoInitListVM() in D:\Repos\iotgateway\WalkingTec.Mvvm\WalkingTec.Mvvm.Core\BasePagedListVM.cs:line 530
     at WalkingTec.Mvvm.Core.WTMContext.CreateVM(Type VMType, Object Id, Object[] Ids, Dictionary`2 values, Boolean passInit) in D:\Repos\iotgateway\WalkingTec.Mvvm\WalkingTec.Mvvm.Core\WTMContext.cs:line 621
     at WalkingTec.Mvvm.Core.WTMContext.CreateVM[T](Expression`1 values, Boolean passInit) in D:\Repos\iotgateway\WalkingTec.Mvvm\WalkingTec.Mvvm.Core\WTMContext.cs:line 652
     at IoTGateway.Controllers.DeviceVariableController.Index() in D:\Repos\iotgateway\IoTGateway\Areas\BasicData\Controllers\DeviceVariableController.cs:line 19
     at lambda_method382(Closure , Object , Object[] )
     at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
     at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Logged|12_1(ControllerActionInvoker invoker)
     at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
     at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
     at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
     at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
  --- End of stack trace from previous location ---
   


