Well I have a feeling there’s something really simple I’m doing wrong here, but I’m trying to Instantiate something like
Transform clone;
clone = Intstantiate(projectile,transform.position,direction);
but for some reason I keep getting an error
Cannot implicitly convert type UnityEngine.Object' to UnityEngine.Rigidbody’. An explicit conversion exists (are you missing a cast?)
I’m using C++, can anyone help? Thanks 
I’m guessing projectile is a member variable that you are typing as a Rigidbody, and then you’re trying to instantiate a Rigidbody as a Transform and it’s yelling at you. Either make clone a Rigidbody or make projectile a Transform.
The projectile is a Transform, it’s not really a projectile i just used that because it was generic i guess
Strange. whats the rest of the script look like? Specifically the line where you declare projectile?
Also, you’re coding in C#, not C++ 
That’s the code, btw I keep getting C++ and C# mixed up XD
And what’s the error your getting? I can’t tell if you made that Rigidbody declaration because of my last post or not, but it looks like Rigidbody portal; should be Transform portal; now.
error CS0266: Cannot implicitly convert type UnityEngine.Object' to UnityEngine.Transform’. An explicit conversion exists (are you missing a cast?)
I changed the portal into a Transform portal and i still get the Error
Your Instantiate function does not return a Rigidbody… Originally it returns a GameObject. To make it do this you will need to write it like this:
Transform portal;
portal = Instantiate(portalUsed, hit.point,
Quaternion.FromToRotation(Vector3.up,hit.normal)).transform;
portal.position += new Vector3(0,0.1F,0);
portal.gameObject.SendMessage("WallInput",hit.transform);
May I suggest some coding differences to save processor usage…
using UnityEngine;
using System.Collections;
public class PortalGun : MonoBehaviour {
public float range = 100F;
public float fireSpeed = 0.1F;
public Transform bluePortal;
public Transform orangePortal;
public LayerMask layersMasked = -1;
private float lastShot = 0.0F;
private Transform portalUsed;
public Transform tPortal;
void Start(){
// Place bluePortal and orangePortal in the scene, not prefabs.
bluePortal.renderer.enabled=false;
orangePortal.renderer.enabled=false;
portalUsed=orangePortal;
}
void Update(){
if(Input.GetButtonDown("Fire1")){Fire1();}
if(Input.GetButtonDown("Fire2")){Fire2();}
}
void Fire ()
{
if(lastShot + fireSpeed < Time.time)
{
// since objects are retained in the scene, we simply choose the inactive one.
if(portalUsed == bluePortal){
portalUsed=orangePortal;
}else{
portalUsed=bluePortal;
}
// enable the one we are using.
portalUsed.renderer.enabled=false;
RaycastHit hit;
// this is always in the z direction, this is not associated with the player's direction
//Vector3 direction = transform.TransformDirection(0,0,1);
// this is a better use of the direction.
Vector3 direction = transform.forward;
lastShot = Time.time;
if(Physics.Raycast(transform.position,direction,out hit,range,layersMasked))
{
// Instantiate returns a GameObject, use it since we are removing the transform later.
GameObject portal;
// adding the hit.normal to the instantiate will save the move.
portal = Instantiate(portalUsed, hit.point + hit.normal * 0.1F,
Quaternion.FromToRotation(Vector3.up,hit.normal));
portal.SendMessage("WallInput",hit.transform);
}
}
}
}
In C# Instantiate() returns a UnityEngine.Object as your error is saying. This is a generic object that all unity objects are. All you need is ‘as Object you are Instantiating’ on the end of that line.
like this:
GameObject newInstance = Instantiate(oldGameObject) as GameObject;
or
Transform newInstance = Instantiate(oldTransform) as Transform;
Generally when you get a message saying “(are you missing a cast?)”, you are probably missing a cast and like I’ve shown you above ‘as’ is how you cast in C#.
Thanks guys I’ll try that! Thanks for teaching me about casting
I don’t code in C# too often, but I thought this too… however I didn’t suggest it because they don’t do this in the documentation example in C#:
using UnityEngine;
using System.Collections;
public class example : MonoBehaviour {
public Transform prefab;
void Awake() {
int i = 0;
while (i < 10) {
Instantiate(prefab, new Vector3(i * 2.0F, 0, 0), Quaternion.identity);
i++;
}
}
}
They don’t do it there because they aren’t assigning the result of Instantiate() to a local variable for further manipulation. Instantiate() on it’s own will put the new object into the scene and let it go about its business. 
What about the second example, though?
using UnityEngine;
using System.Collections;
public class example : MonoBehaviour {
public Rigidbody projectile;
void Update() {
if (Input.GetButtonDown("Fire1")) {
Rigidbody clone;
clone = Instantiate(projectile, transform.position, transform.rotation);
clone.velocity = transform.TransformDirection(Vector3.forward * 10);
}
}
}
Oh, I guess that’s just fail?
Except it compiles and works! 
I’m confused also.