Unity script error (620759)

Scripting
1

I’m currently working on a project, But I’ve ran into an error. I have no clue how to fix it, these are my errors:

Assets/Standard Assets/CrossPlatformInput/Scripts/AxisTouchButton.cs(3,19): error CS0234: The type or namespace name EventSystems' does not exist in the namespace UnityEngine’. Are you missing an assembly reference?
Assets/Standard Assets/CrossPlatformInput/Scripts/AxisTouchButton.cs(7,55): error CS0246: The type or namespace name IPointerDownHandler' could not be found. Are you missing a using directive or an assembly reference?** **Assets/Standard Assets/CrossPlatformInput/Scripts/AxisTouchButton.cs(7,76): error CS0246: The type or namespace name IPointerUpHandler’ could not be found. Are you missing a using directive or an assembly reference?
Assets/Standard Assets/CrossPlatformInput/Scripts/Joystick.cs(3,19): error CS0234: The type or namespace name EventSystems' does not exist in the namespace UnityEngine’. Are you missing an assembly reference?

Assets/Standard Assets/CrossPlatformInput/Scripts/Joystick.cs(7,48): error CS0246: The type or namespace name `IPointerDownHandler’ could not be found. Are you missing a using directive or an assembly reference?

Assets/Standard Assets/CrossPlatformInput/Scripts/Joystick.cs(7,69): error CS0246: The type or namespace name `IPointerUpHandler’ could not be found. Are you missing a using directive or an assembly reference?

ssets/Standard Assets/CrossPlatformInput/Scripts/Joystick.cs(7,88): error CS0246: The type or namespace name IDragHandler' could not be found. Are you missing a using directive or an assembly reference?** **Assets/Standard Assets/CrossPlatformInput/Scripts/TouchPad.cs(3,19): error CS0234: The type or namespace name EventSystems’ does not exist in the namespace UnityEngine'. Are you missing an assembly reference?** **Assets/Standard Assets/CrossPlatformInput/Scripts/TouchPad.cs(4,19): error CS0234: The type or namespace name UI’ does not exist in the namespace UnityEngine'. Are you missing an assembly reference?** **Assets/Standard Assets/CrossPlatformInput/Scripts/TouchPad.cs(9,48): error CS0246: The type or namespace name IPointerDownHandler’ could not be found. Are you missing a using directive or an assembly reference?

Assets/Standard Assets/CrossPlatformInput/Scripts/TouchPad.cs(9,69): error CS0246: The type or namespace name `IPointerUpHandler’ could not be found. Are you missing a using directive or an assembly reference?

Assets/Standard Assets/Utility/EventSystemChecker.cs(4,19): error CS0234: The type or namespace name EventSystems' does not exist in the namespace UnityEngine’. Are you missing an assembly reference?
Assets/Standard Assets/Utility/FPSCounter.cs(3,19): error CS0234: The type or namespace name UI' does not exist in the namespace UnityEngine’. Are you missing an assembly reference?

My Script is:

using System;
using UnityEngine;
using UnityEngine.EventSystems;

namespace UnityStandardAssets.CrossPlatformInput
{
    public class AxisTouchButton : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
    {
        // designed to work in a pair with another axis touch button
        // (typically with one having -1 and one having 1 axisValues)
        public string axisName = "Horizontal"; // The name of the axis
        public float axisValue = 1; // The axis that the value has
        public float responseSpeed = 3; // The speed at which the axis touch button responds
        public float returnToCentreSpeed = 3; // The speed at which the button will return to its centre

        AxisTouchButton m_PairedWith; // Which button this one is paired with
        CrossPlatformInputManager.VirtualAxis m_Axis; // A reference to the virtual axis as it is in the cross platform input

        void OnEnable()
        {
            if (!CrossPlatformInputManager.AxisExists(axisName))
            {
                // if the axis doesnt exist create a new one in cross platform input
                m_Axis = new CrossPlatformInputManager.VirtualAxis(axisName);
                CrossPlatformInputManager.RegisterVirtualAxis(m_Axis);
            }
            else
            {
                m_Axis = CrossPlatformInputManager.VirtualAxisReference(axisName);
            }
            FindPairedButton();
        }

        void FindPairedButton()
        {
            // find the other button witch which this button should be paired
            // (it should have the same axisName)
            var otherAxisButtons = FindObjectsOfType(typeof(AxisTouchButton)) as AxisTouchButton[];

            if (otherAxisButtons != null)
            {
                for (int i = 0; i < otherAxisButtons.Length; i++)
                {
                    if (otherAxisButtons[i].axisName == axisName && otherAxisButtons[i] != this)
                    {
                        m_PairedWith = otherAxisButtons[i];
                    }
                }
            }
        }

        void OnDisable()
        {
            // The object is disabled so remove it from the cross platform input system
            m_Axis.Remove();
        }


        public void OnPointerDown(PointerEventDat data)
        {
            if (m_PairedWith == null)
            {
                FindPairedButton();
            }
            // update the axis and record that the button has been pressed this frame
            m_Axis.Update(Mathf.MoveTowards(m_Axis.GetValue, axisValue, responseSpeed * Time.deltaTime));
        }


        public void OnPointerUp(PointerEventData data)
        {
            m_Axis.Update(Mathf.MoveTowards(m_Axis.GetValue, 0, responseSpeed * Time.deltaTime));
        }
    }
}

Can someone help me fix the errors, and explain what they are?

2

I would guess that your project doesn’t reference UnityEngine.UI.dll.

3

This. What version of Unity are you using?

4

I am having the same issue and i am using Unity5.4.1
how did you fix it ??

5

Include
using UnityEngine.UI; in your script, if I understand correctly

6

Closing unity and opening it again fixed for me hahaha. Thanks for the reply though, i’ll try it next time i get them. It was only coming when i was building the project