C#

public Invoice(InvoicePresentation pmodel)
{
    this.InitializeComponent();
    this._pmodel = pmodel;
    base.InitialFocus = this.txtBarcode;
    this.pauseForm = new PauseEntry();
    this.pauseForm.StartPosition = FormStartPosition.CenterParent;
    this._itemActionsView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._customerActionsView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._invoiceActionsView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._taskActionsView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._toolsActionsView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._returnActionsView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._taskPad1X10View = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._invoiceActionsForCCView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._invoiceActionsForDSView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._taskActionsForDSView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });
    this._taskActionsForCCView = Unity.Instance.Resolve(new ResolverOverride[]
    {
        new ParameterOverride("invoiceUI", this)
    });

public class Unity
 {
private static readonly IUnityContainer _instance = new UnityContainer();
public static IUnityContainer Instance { get{ return Unity._instance; 
}
 }

Quote:

Error 77 'Microsoft.Practices.Unity.IUnityContainer' does not contain a definition for 'Resolve' and the best extension method overload 'Microsoft.Practices.Unity.UnityContainerExtensions.Resolve(Microsoft.Practices.Unity.IUnityContainer, System.Type, params Microsoft.Practices.Unity.ResolverOverride[])' has some invalid arguments