Error: are you missing a using directive or an assembly reference?

I installed unity3D, Andriod SDK and JDK. when I imported the: arcore-unity-sdk-v1.11 including examples . I am getting Error.

This is in Windows10. JDK is 1.8
unity version-unity2019.2.1f1

Assets\GoogleARCore\Examples\CloudAnchors\Scripts\AnchorController.cs(40,10): error CS0246: The type or namespace name 'SyncVarAttribute' could not be found (are you missing a using directive or an assembly reference?)
Assets\GoogleARCore\Examples\CloudAnchors\Scripts\AnchorController.cs(40,10): error CS0246: The type or namespace name 'SyncVarAttribute' could not be found (are you missing a using directive or an assembly reference?)
Assets\GoogleARCore\Examples\CloudAnchors\Scripts\AnchorController.cs(40,10): error CS0246: The type or namespace name 'SyncVar' could not be found (are you missing a using directive or an assembly reference?)
Assets\GoogleARCore\Examples\CloudAnchors\Scripts\LocalPlayerController.cs(46,30): error CS0115: 'LocalPlayerController.OnStartLocalPlayer()': no suitable method found to override


I tried multiple unity versions same error? am I missing anything.
I

 

I have the same problem (

 

For me the errors
Assets\Scripts\Pull.cs(3,21): error CS0246: The type or namespace name 'MonoBehaviour' could not be found (are you missing a using directive or an assembly reference?)
and
Assets\Scripts\Pull.cs(6,12): error CS0246: The type or namespace name 'Rigidbody2D' could not be found (are you missing a using directive or an assembly reference?)
keeps happening, does anyone know why and how to fix it

 

Im also in the latest version of unity

 

does anyone found a solution for this problem?

 

For me the errors

Code (CSharp):

1. Assets\Scripts\TachLineAnimation.cs(16,51): error CS0246: The type or namespace name 'SprintRenderer' could not be found (are you missing a using directive or an assembly reference?)
2.  
3. Assets\Scripts\TachLineAnimation.cs(20,18): error CS0103: The name 'Timer' does not exist in the current context
4.  

Unity 2018.4.13

 

For me those, anyone can help me?

1.Assets\TypeOut\Scripts\TypeOutEditor.cs(5,7): error CS0246: The type or namespace name 'UnityEditorInternal' could not be found (are you missing a using directive or an assembly refer
2.The type or namespace name 'MenuItemAttribute' could not be found (are you missing a using directive or an assembly reference?)
3.The type or namespace name 'MenuItem' could not be found (are you missing a using directive or an assembly reference?)
4.The type or namespace name 'Editor' could not be found (are you missing a using directive or an assembly reference?)
5.The type or namespace name 'CustomEditorAttribute' could not be found (are you missing a using directive or an assembly reference?)
6.The type or namespace name 'CustomEditor' could not be found (are you missing a using directive or an assembly reference?)
7.'TypeOutEditor.OnInspectorGUI()': no suitable method found to override
8.The type or namespace name 'SerializedObject' could not be found (are you missing a using directive or an assembly reference?)
9.The type or namespace name 'SerializedProperty' could not be found (are you missing a using directive or an assembly reference?)
10.Error building Player because scripts had compiler errors

 

It helps to post code. But really, this error is usually user based, you've made a typo or you've made a class that doesn't belong to a unique namespace, or using deprecated code.

Some people forget to include using at the top, or even :Monobehaviour (derive from a Unity class).

Lots of reasons but usually it'll be the developer hasn't linked their code up properly.

 

Code (CSharp):

1. using UnityEngine;
2.  
3.  
4. [RequireComponent(typeof(PlayerMotor))]
5.  
6. public class PlayerController : MonoBehaviour
7.  
8.    
9.  
10. {
11.     [SerializeField]
12.     private float speed = 5f;
13.  
14.     private PlayerMotor motor;
15.  
16.     void start ()
17.     {
18.         motor = GetComponent<PlayerMotor>();
19.     }
20.  
21.  
22.     void Update ()
23.     {
24.         float _xMov = Input.GetAxisRaw("Horizontal");
25.         float _xMov = Input.GetAxisRaw("Vertical");
26.  
27.         Vector3 _movHorizontal = transform.right * _xMov;
28.         Vector3 _movVertical = transform.forward * _xMov;
29.  
30.         Vector3 _velocity =(_movHorizontal +  _movVertical).normalized * speed;
31.  
32.         motor.Move(_velocity);
33.     }
34. }
35.  

I have that code and that.

Code (CSharp):

1. using UnityEngine;
2.  
3.     [RequireCompontent(typeof(Rigidbody))]
4.  
5.  
6. public class PlayerMotor : MonoBehaviour
7. {
8.  
9.    private Vector3 velocity = Vector3.zero;
10.  
11.    private Rigidbody rb;
12.  
13.    void Start ()
14.    {
15.         rb.GetComponent<Rigidbody>();
16.    }
17.  
18.    public void Move(Vector3 _velocity)
19.    {
20.         velocity = _velocity;
21.    }
22.  
23.    void FixedUpdate ()
24.    {
25.         PerformMovement();
26.    }
27.  
28.      
29.  
30.         void PerformMovement ()
31.         {
32.                 if (velocity != Vector3.zero)
33.                 {
34.                     rb.MovePosition(rb.position + velocity + Time.fixedDeltaTime);
35.                 }
36.        
37.         }
38.  
39. }
40.  

can anyone help me? i have those errors
Assets\Scripts\PlayerMotor.cs(3,6): error CS0246: The type or namespace name 'RequireCompontentAttribute' could not be found (are you missing a using directive or an assembly reference?)
Assets\Scripts\PlayerMotor.cs(3,6): error CS0246: The type or namespace name 'RequireCompontent' could not be found (are you missing a using directive or an assembly reference?)

 

"RequireCompontent"

You made a typo.

Some tips:

1. use a proper IDE like visual studio if not already so you can see broken code in the actual text environment and not even need to switch to unity to check

2. indent better, do it properly and consistently

 

use Window > Package Manager to install the Multiplayer HLAPI and XR Legacy Input Helpers packages.

 

It may be a good idea to check your selected target platform. I once had my target platform unknowingly switched from WebGL to PC, Mac, Standalone and it was throwing namespace not found errors

 

I'm having a similar problem but not sure how to fix it.

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using System;
6.  
7. public class BoxControler : MonoBehaviour
8. {
9.     private const float MOVE_SPEED = 60f;
10.  
11.     private Character_Base characterBase;
12.     private Rigidbody2D rigidbody2D;
13.     private Vector3 moveDir;
14.  
15.     private void Awake ()
16.     {
17.         characterBase = GetComponent<Character_Base>();
18.         rigidbody2D = GetComponent<Rigidbody2D>();
19.     }
20.  
21.     private void Update()
22.     {
23.         float moveX = 0f;
24.         float moveY = 0f;
25.  
26.         if (Input. GetKey(KeyCode.A))
27.         {
28.             moveX = -1f;
29.         }
30.  
31.         if (Input.GetKey(KeyCode.D))
32.         {
33.             moveX = +1f;
34.         }
35.  
36.         if (Input.GetKey(KeyCode.S))
37.         {
38.             moveX = -1f;
39.         }
40.  
41.         if (Input.GetKey(KeyCode.W))
42.         {
43.             moveX = +1f;
44.         }
45.  
46.         moveDir = new Vector3(moveX, moveY).normalized;
47.         characterBase.PlayMoveAnim(moveDir);
48.     }
49.  
50.     private void FixedUpdate()
51.     {
52.         rigidbody2D.velocity = moveDir + MOVE_SPEED;
53.     }
54. }
55.  
56.  

 

Ok i literally just had this issue and i figured it out matching it up with a similar script from a template.
add this at the starting top using UnityEngine.Events; i was using public UnityAction onCrouch; within my crouch code and i got the error because i didnt add in the UnityEngine.Events


example below

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.Events;
5. using Platformer.Gameplay;

 

Try to use namespace on every script you use.

 

@sialihsm. thanks for the reply. the issue been solved months ago.

 

I have the same problem

 

public void InputComponent(){
InputField.GetComponent<Text>();
}

public void InputNum(){

TextBox.GetComponent<Text>().text = InputField.InputComponent();
}



Can SomeOne Help me whats the problem here?
Showing same error..

Assets\Scripts\Count.cs(64,56): error CS1061: 'GameObject' does not contain a definition for 'InputComponent' and no accessible extension method 'InputComponent' accepting a first argument of type 'GameObject' could be found (are you missing a using directive or an assembly reference?)

 

Assets\Scripts\MaterialSelector.cs(19,32): error CS0246: The type or namespace name 'Button' could not be found (are you missing a using directive or an assembly reference?)


i have a problem can someone help out?????

 

I've just downloaded an unlocked asset by Unity, empty projet, easy import, and a lot of errors (46 to be clear)... Using VS, last update, Unity 2020.3.27f1... If someone can help ^^

Lot of missing dependencies, lib not found, ....

Link to the asset : https://assetstore.unity.com/packag...jects/asset-unlock-3d-prototyping-pack-183069