[Solved] C# error: Use of keyword base is not valid in this context

Dear Sir,

I have an error "Use of keyword 'base' is not valid in this context"

Please Guide me

public FormDock()
{
    Rectangle bounds = Screen.PrimaryScreen.Bounds;
    this._normalScreenHeight = bounds.Height;
    bounds = Screen.PrimaryScreen.WorkingArea;
    this._workspaceScreenHeight = bounds.Height;
    this._dragControls = new Dictionary<string, bool>();
    this._snapArea = new Utilities.Indicator();
    this._dockingOptions = new Utilities.DockOptions();
    this._titleBarOptions = new Utilities.TitleBarOptions();
    this._formBorderOptions = new Utilities.FormBorderOptions();
    this._dragControlsCollection = new List<Control>();
    this.AllowHidingBottomRegion = true;
    //error below line code
    base();
    this.InitializeComponent();
    this.AllowDockingKeys = false;
    this.ShowCursorChanges = true;
    this.AllowFormDropShadow = true;
    this.ShowDockingIndicators = true;
    this.DockingOptions.DockAll = true;
    this.AllowOpacityChangesWhileDragging = false;
    this.FormDraggingOpacity = 0.9;
    this.DockingIndicatorsOpacity = 0.5;
    this.DockingIndicatorsColor = Color.FromArgb(202, 215, 233);
    this._titleBarOptions.FormDock = this;
}