Cannot cast Method group to UnityAction

                 void Close()
                 {}
                 void CloseImmediately()
                 {}
                 
                 UnityAction h = m_CloseChildViews ? (UnityAction)CloseImmediately : (UnityAction)Close; //Unnecessarily long 
                 UnityAction h1 = m_CloseChildViews ? CloseImmediately : Close; //Error here
                 
                 if (m_CloseChildViews == true)
                 {
                     CloseButton.onClick.AddListener(CloseImmediately);
                 }
                 else
                 {
                     CloseButton.onClick.AddListener(Close);
                 }

Is there anything you can do about this??