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"An unexpected error occurred" error message displayed when adding machines/users to a policy/deployment rule in SmartEndpoint Technical Level
Symptoms
  • When adding a user or machine to a policy or deployment rule in SmartEndpoint, this error pops up, after policy installation. "An unexpected error occurred Sorry for the inconvenience, please restart the application."

  • In %localappdata%\CheckPoint\SmartEndpoint_Logs\R80_XX\SmartEndpoint_Logs.txt:
    2019-08-02 18:29:20,329 [Main Thread] ERROR LogFileAppender -->Exception: An unexpected error occurred -->
    -->Exception: Object reference not set to an instance of an object.
    --> at GuiISWPF.ControlsLibrary.DataGridIconStringColumn.LoadContent(DataGridCell cell, Object dataItem, ContentPresenter cp)
    at GuiISWPF.ControlsLibrary.DataGridIconStringColumn.GenerateElement(DataGridCell cell, Object dataItem)
    at System.Windows.Controls.DataGridCell.BuildVisualTree()
    at System.Windows.Controls.DataGridCell.OnIsEditingChanged(Boolean isEditing)
    at System.Windows.Controls.DataGridCell.OnIsEditingChanged(Object sender, 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.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
Cause

Issue related to .NET framework.


Solution
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