# (UnityEngine.Transform)': not all code paths return a value
**URL:** https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562
**Category:** Physics
**Tags:** Scripting
**Created:** [February 2, 2013, 11:54pm UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562 "2013-02-02T23:54:22Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@1010](https://discussions.unity.com/u/1010)
#### Post date: [February 2, 2013, 11:54pm UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/1 "2013-02-02T23:54:22Z")
Line(19) (UnityEngine.Transform)': not all code paths return a value
Any help is always greatly appreciated.
```auto
public LayerMask mask = 1 << 8;
public int Dis = 10;
private int breakWhile = 1;
public Collider[] closeWaypoints;
public GameObject FindClosestWaypoint(Transform inTransform)
{
var inPosition = inTransform.position;
closeWaypoints = Physics.OverlapSphere(inPosition,Dis,mask);
while(closeWaypoints.Length < 3 breakWhile <10)
{
closeWaypoints = Physics.OverlapSphere(inPosition,Dis,mask);
if(closeWaypoints.Length >0)
{
return closeWaypoints[0].gameObject;
}
Dis += 10;
breakWhile++;
}
}
```
---
### Author:  [@alexzzzz](https://discussions.unity.com/u/alexzzzz)
#### Post date: [February 3, 2013, 12:09am UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/2 "2013-02-03T00:09:07Z")
What the function is supposed to return if closeWaypoints.Length equals to 3?
---
### Author:  [@fano\_linux](https://discussions.unity.com/u/fano_linux)
#### Post date: [February 3, 2013, 1:11am UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/3 "2013-02-03T01:11:35Z")
create a GameObject before the ‘while’ execution and initialize it as null; then at the end of the code return the variable you have set.
At the if(closeWaypoints.Lenght \> 0 ) chage the return to variable\_you\_created = closeWaypoints[0].gameObject; and add a break; to stop the ‘while’;
---
### Author:  [@1010](https://discussions.unity.com/u/1010)
#### Post date: [February 3, 2013, 1:36am UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/4 "2013-02-03T01:36:48Z")
getting WaypointOne’ is assigned but its value is never used
(19)UnityEngine.Transform)': not all code paths return a value
```auto
public LayerMask mask = 1 << 8;
public int Dis = 10;
private int breakWhile = 1;
public Collider[] closeWaypoints;
public GameObject FindClosestWaypoint(Transform inTransform)
{
var inPosition = inTransform.position;
closeWaypoints = Physics.OverlapSphere(inPosition,Dis,mask);
GameObject WaypointOne = null;
while(closeWaypoints.Length < 3 breakWhile <10)
{
closeWaypoints = Physics.OverlapSphere(inPosition,Dis,mask);
if(closeWaypoints.Length >0)
{
return WaypointOne = closeWaypoints[0].gameObject;
}
Dis += 10;
breakWhile++;
}
}
```
---
### Author:  [@Kaze\_Senshi](https://discussions.unity.com/u/Kaze_Senshi)
#### Post date: [February 3, 2013, 1:41am UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/5 "2013-02-03T01:41:52Z")
If you create a function that returns something, it MUST return something always, look that the ONLY return in your function is inside of a if-clause, so if it is false, it will never return. You must guarantee that there is always one execution-path that goes until a return line, look this code at it’s very end I put a return line, in any case you’ll reach one of the following return lines.
```auto
public LayerMask mask = 1 << 8;
public int Dis = 10;
private int breakWhile = 1;
public Collider[] closeWaypoints;
public GameObject FindClosestWaypoint(Transform inTransform)
{
var inPosition = inTransform.position;
closeWaypoints = Physics.OverlapSphere(inPosition,Dis,mask);
GameObject WaypointOne = null;
while(closeWaypoints.Length < 3 breakWhile <10)
{
closeWaypoints = Physics.OverlapSphere(inPosition,Dis,mask);
if(closeWaypoints.Length >0)
{
return WaypointOne = closeWaypoints[0].gameObject;
}
Dis += 10;
breakWhile++;
}
return null; // null = empty, nothing to return
}
```
---
### Author:  [@npsf3000\_1](https://discussions.unity.com/u/npsf3000_1)
#### Post date: [February 3, 2013, 1:42am UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/6 "2013-02-03T01:42:41Z")
> [@fano\_linux](#):
>
> create a GameObject before the ‘while’ execution and initialize it as null; then at the end of the code return the variable you have set.
> At the if(closeWaypoints.Lenght \> 0 ) chage the return to variable\_you\_created = closeWaypoints[0].gameObject; and add a break; to stop the ‘while’;
That’s so much simpler than adding ‘return null’ to the end of the function…
> [@Kaze\_Senshi](#):
>
> If you create a function that returns something, it MUST return something always…
Or throw an Exception 😛
---
### Author:  [@1010](https://discussions.unity.com/u/1010)
#### Post date: [February 3, 2013, 2:15am UTC](https://discussions.unity.com/t/unityengine-transform-not-all-code-paths-return-a-value/496562/7 "2013-02-03T02:15:59Z")
Thanks for the help