Im getting an error CS0115 cs.

using UnityEngine; using System.Collections;

namespace Opsive.ThirdPersonController.Input { ///

     /// <summary>
     /// Assign the static variables and initialize the default values.
     /// </summary>
     private void OnEnable()
     {
         s_PlayerInput = this;
     }
     
     /// <summary>
     /// Register for any events that the handler should be aware of.
     /// </summary>
     private void Start()
     {
         EventHandler.RegisterEvent<bool>(gameObject, "OnAllowGameplayInput", AllowGameplayInput);
     }
     
     /// <summary>
     /// Internal method to determine if the disabled button is down.
     /// </summary>
     /// <param name="primaryInput">Should the primary input be checked?</param>
     /// <returns>True if the disabled button is down.</returns>
     protected override bool IsDisabledButtonDownInternal(bool primaryInput)
     {
         return GetButton(primaryInput ? Constants.PrimaryDisableButtonName : Constants.SecondaryDisableButtonName, true);
     }

     /// <summary>
     /// Internal method to return true if the button is being pressed.
     /// </summary>
     /// <param name="name">The name of the button.</param>
     /// <returns>True of the button is being pressed.</returns>
     protected override bool GetButtonInternal(string name, bool positiveAxis)
     {
         if (!m_AllowGameplayInput) {
             return false;
         }

         return CFInput.GetButton(name);
     }

     /// <summary>
     /// Internal method to return true if the button was pressed this frame. Will use the joystick axis if a joystick is connected.
     /// </summary>
     /// <param name="name">The name of the button.</param>
     /// <param name="positiveAxis">If using a joystick, is the joystick axis positive?</param>
     /// <returns>True if the button is pressed this frame.</returns>
     protected override bool GetButtonDownInternal(string name, bool positiveAxis)
     {
         if (!m_AllowGameplayInput) {
             return false;
         }

         return CFInput.GetButtonDown(name);
     }

     /// <summary>
     /// Internal method to return true if the button was pressed this frame.
     /// </summary>
     /// <param name="name">The name of the button.</param>
     /// <returns>True if the button is pressed this frame.</returns>
     protected override bool GetButtonDownInternal(string name)
     {
         return CFInput.GetButtonDown(name);
     }

     /// <summary>
     /// Internal method to return true if the button is up.
     /// </summary>
     /// <param name="name">The name of the button.</param>
     /// <param name="useJoystick">Should the input be using the joystick if connected?</param>
     /// <returns>True if the button is up.</returns>
     protected override bool GetButtonUpInternal(string name, bool useJoystickAxis)
     {
         return CFInput.GetButtonUp(name);
     }

     /// <summary>
     /// Internal method to return true if a double tap occurred.
     /// </summary>
     /// <returns>True if a double tap occurred.</returns>
     protected override bool GetDoublePressInternal()
     {
         if (UnityEngine.Input.touchCount == 0) {
             return false;
         }
         var touch = UnityEngine.Input.touches[0];
         return touch.tapCount == 2;
     }

     /// <summary>
     /// Internal method to return the value of the axis with the specified name.
     /// </summary>
     /// <param name="name">The name of the axis.</param>
     /// <returns>The value of the axis.</returns>
     protected override float GetAxisInternal(string name)
     {
         return  CFInput.GetAxis(name);
     }

     /// <summary>
     /// Internal method to return the value of the raw axis with the specified name.
     /// </summary>
     /// <param name="name">The name of the axis.</param>
     /// <returns>The value of the raw axis.</returns>
     protected override float GetAxisRawInternal(string name)
     {
         return CFInput.GetAxisRaw(name);
     }

     /// <summary>
     /// Should the mouse be used?
     /// </summary>
     /// <returns>True if the mouse should be used.</returns>
     protected  bool UseMouseInternal()
     {
         return false;
     }

     /// <summary>
     /// Internal method to return the position of the mouse.
     /// </summary>
     /// <returns>The mouse position.</returns>
     protected override Vector2 GetMousePositionInternal()
     {
         return CFInput.mousePosition;
     }

     /// <summary>
     /// Is gameplay input allowed? An example of when it will not be allowed is when there is a fullscreen UI over the main camera.
     /// </summary>
     /// <param name="allow">True if gameplay is allowed.</param>
     private void AllowGameplayInput(bool allow)
     {
         m_AllowGameplayInput = allow;
     }
 }

}

I corrected one of the errors but I don't understand this one.