I have a setup with one server and one terminal. It was working fine then when I went to edit a menu on the server I get a flashing error box with the message “Object reference not set to an instance of an object.”. This appears to be flashing as though the system encounters an error and keeps retrying. This is confirmed by the error log which has multiple repetitions of the same error.
When I connect to the server from the terminal I can edit the menu with no problem. When I disconnect the network and try to edit at the server the problem is still there which implies it is a local issue at the server. The error report is as follows, any suggestions would be most welcome.
8/10/2018 10:15 PM
[General Info]
Application: SambaPOS
Version: 5.2.7
Region: en
DB: SQ
Machine: OGB-ON-13-SERVE
User: OGB_System
Date: 8/10/2018
Time: 3:15 PM
User Explanation:
OGB_System said “”
[Exception Info 1]
Top-level Exception
Type: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: Samba.Presentation.ClientLibrary
Stack Trace: at Samba.Presentation.ClientLibrary.Modules.PosModule.SubButtonColorDef.AreColorsValid(String colorDef) in C:\Users\vehbi\Source\Repos\sambapos-v5-pro\Samba.Presentation.ClientLibrary\Modules\PosModule\SubButtonColorDef.cs:line 67
at Samba.Management.MenuModule.ScreenMenuValidatior.<>c.<.ctor>b__0_5(ScreenMenuCategory y)
at System.Linq.Enumerable.All[TSource](IEnumerable1 source, Func
2 predicate)
at Samba.Management.MenuModule.ScreenMenuValidatior.<>c.<.ctor>b__0_4(IList1 x) at FluentValidation.DefaultValidatorExtensions.<>c__DisplayClass1
2.b__0(T x, TProperty val)
at FluentValidation.DefaultValidatorExtensions.<>c__DisplayClass42.<Must>b__3(T x, TProperty val, PropertyValidatorContext propertyValidatorContext) at FluentValidation.DefaultValidatorExtensions.<>c__DisplayClass7
2.b__6(Object instance, Object property, PropertyValidatorContext propertyValidatorContext)
at FluentValidation.Validators.PredicateValidator.IsValid(PropertyValidatorContext context)
at FluentValidation.Validators.PropertyValidator.Validate(PropertyValidatorContext context)
at FluentValidation.Internal.PropertyRule.InvokePropertyValidator(ValidationContext context, IPropertyValidator validator, String propertyName)
at FluentValidation.Internal.PropertyRule.d__8.MoveNext()
at System.Linq.Enumerable.d__172.MoveNext() at System.Collections.Generic.List
1…ctor(IEnumerable1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable
1 source)
at FluentValidation.AbstractValidator1.Validate(ValidationContext
1 context)
at FluentValidation.AbstractValidator1.Validate(T instance) at Samba.Presentation.Common.ModelBase.EntityViewModelBase
1.Validate()
at Samba.Presentation.Common.ModelBase.EntityViewModelBase1.CanSave(String arg) at Microsoft.Practices.Prism.Commands.DelegateCommand
1.<>c__DisplayClass6.<.ctor>b__3(Object o)
at Microsoft.Practices.Prism.Commands.DelegateCommandBase.CanExecute(Object parameter)
at Microsoft.Practices.Prism.Commands.DelegateCommandBase.System.Windows.Input.ICommand.CanExecute(Object parameter)
at MS.Internal.Commands.CommandHelpers.CanExecuteCommandSource(ICommandSource commandSource)
at System.Windows.Controls.Primitives.ButtonBase.UpdateCanExecute()
at System.Windows.Controls.Primitives.ButtonBase.HookCommand(ICommand command)
at System.Windows.Controls.Primitives.ButtonBase.OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)
at System.Windows.Data.BindingExpressionBase.Invalidate(Boolean isASubPropertyChange)
at System.Windows.Data.BindingExpression.TransferValue(Object newValue, Boolean isASubPropertyChange)
at System.Windows.Data.BindingExpression.Activate(Object item)
at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt attempt)
at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Run(Object arg)
at MS.Internal.Data.DataBindEngine.OnLayoutUpdated(Object sender, EventArgs e)
at System.Windows.ContextLayoutManager.fireLayoutUpdateEvent()
at System.Windows.ContextLayoutManager.UpdateLayout()
at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
[Assembly Info]
mscorlib, Version=4.0.0.0
Samba.Services, Version=1.0.0.0
Samba.Domain, Version=1.0.0.0
Samba.Infrastructure.Data, Version=1.0.0.0
System.ComponentModel.Composition, Version=4.0.0.0
Samba.Presentation.Services, Version=1.0.0.0
System.Core, Version=4.0.0.0
PresentationCore, Version=4.0.0.0
DevExpress.Xpf.LayoutControl.v16.2, Version=16.2.6.0
System.Xml, Version=4.0.0.0
DevExpress.Xpf.Grid.v16.2, Version=16.2.6.0
System, Version=4.0.0.0
DevExpress.Xpf.Grid.v16.2.Core, Version=16.2.6.0
WindowsBase, Version=4.0.0.0
System.Xaml, Version=4.0.0.0
PresentationFramework, Version=4.0.0.0
Samba.Infrastructure, Version=1.0.0.0
Microsoft.Practices.Prism, Version=4.0.0.0
System.Runtime.Serialization, Version=4.0.0.0
Microsoft.Practices.Prism.MefExtensions, Version=4.0.0.0
DevExpress.Xpf.Core.v16.2, Version=16.2.6.0
System.Windows.Forms, Version=4.0.0.0
System.Drawing, Version=4.0.0.0
Samba.Persistance, Version=1.0.0.0
Stateless, Version=1.0.0.0
PropertyTools, Version=2012.4.14.1
Samba.Localization, Version=1.0.0.0
ReachFramework, Version=4.0.0.0
EntityFramework, Version=6.0.0.0
FluentValidation, Version=3.4.0.0
Microsoft.CSharp, Version=4.0.0.0
Omu.ValueInjecter, Version=2.3.0.0
Microsoft.Practices.ServiceLocation, Version=1.0.0.0
DevExpress.Data.v16.2, Version=16.2.6.0
WindowsInput, Version=1.0.4.0
[System Info]
Operating System
-Microsoft Windows 10 Home Single Language
–CodeSet = 1252
–CSDVersion =
–CurrentTimeZone = 420
–FreePhysicalMemory = 1361192
–OSArchitecture = 64-bit
–OSLanguage = 1033
–ServicePackMajorVersion = 0
–ServicePackMinorVersion = 0
–Version = 10.0.17134
Machine
-OGB-ON-13-SERVE
–Manufacturer = HP
–Model = HP All-in-One 22-c0xx
–TotalPhysicalMemory = 4156342272