Setting executeInBackground = true on iOS Cannot create property error

I'm using Flash Builder 4.7, created a Flex Mobile project.
When my application deactivates, it needs to send a single POSt HTTP request to my server. It takes a few milliseconds to send, and on Android it works just fine. However, on iOS, since the app is suspended, the request is not sent until I activate the app again.
I've looked online and tried this solution:
adding the line
    NativeApplication.nativeApplication.executeInBackground = true;
In the home view, or just before sending the request, raises an exception:
ReferenceError: Error #1056: Cannot create property executeInBackground on flash.desktop.NativeApplication.
          at views::BnpSampleHomeView$cinit()
          at global$init()
          at BnpSample()[C:\eclipse\projects\BnpSample\src\BnpSample.mxml:3]
          at _BnpSample_mx_managers_SystemManager/create()[_BnpSample_mx_managers_SystemManager.as:51]
          at mx.managers.systemClasses::ChildManager/initializeTopLevelWindow()[E:\dev\4.y\frameworks\ projects\framework\src\mx\managers\systemClasses\ChildManager.as:311]
          at mx.managers::SystemManager/initializeTopLevelWindow()[E:\dev\4.y\frameworks\projects\fram ework\src\mx\managers\SystemManager.as:3057]
          at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::kickOff()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2843]
          at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::preloader_completeHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2723]
          at flash.events::EventDispatcher/dispatchEventFunction()
          at flash.events::EventDispatcher/dispatchEvent()
          at mx.preloaders::Preloader/timerHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\p reloaders\Preloader.as:542]
          at flash.utils::Timer/_timerDispatch()
          at flash.utils::Timer/tick()
Help is apprecaited

Some parts of this topic may be of help:
http://forums.adobe.com/message/4359474

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Cannot create property defaultColumnCount on mx.controls.DataGrid

The app compiles fine but an error occurs at runtime.
Code:
<mx:DataGrid width="100%"
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Error:
Cannot create property defaultColumnCount on mx.controls.DataGrid
Property description:
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/controls/listClasses /ListBase.html#defaultColumnCount

it appears that datagrid does not inherite that property from listbase class or if it does its encapsulated so that is only used withing the class.
what are you trying to do. when i look a the source code for flex datagrid i saw this.
private var _columns:Array; // the array of our DataGridColumns
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 * An array of DataGridColumn objects, one for each column that
 * can be displayed. If not explicitly set, the DataGrid control
 * attempts to examine the first data provider item to determine the
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 * order.
 * If you want to change the set of columns, you must get this array,
 * make modifications to the columns and order of columns in the array,
 * and then assign the new array to the columns property. This is because
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 * @playerversion Flash 9
 * @playerversion AIR 1.1
 * @productversion Flex 3
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 return _columns.slice(0);
 * @private
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 freeItemRenderersTable = new Dictionary(false);
 columnMap = {};
 _columns = value.slice(0);
 columnsInvalid = true;
 generatedColumns = false;
 n = value.length;
 for (i = 0; i < n; i++)
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 if (column.cachedHeaderRenderer)
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its ovbious to me that flex is calculating how many columns will appear on the datagrid depending on the dataprovider you supply.
Or if you would like to only show a specific amount of columns you can futher define them in your grid like so
<mx:DataGrid id="grid" columnCount="2">
<mx:columns>
<mx:DataGridColumn headerText="column1"/>
<mx:DataGridColumn headerText="column2"/>
</mx:columns>
</mx:DataGrid >

Error #1056: Cannot create property __id0_ on ModuleSwf

I have a document class for a SWF. This SWF compiles and runs fine. When I load it inside another SWF, I get this:
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ModuleSwf is the document class of the loaded SWF. What is causing this?

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          at flash.display::Sprite()
          at flash.display::MovieClip()
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package
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          import flash.display.MovieClip;
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ReferenceError: Error #1056: Cannot create property

Hello,
I have been playing around with passing objects between Flex and BlazeDS.
I have a Java VO:
package vo;
import java.util.Date;
import java.util.Set;
public class TestVO
private long aInt;
private double aDouble;
private boolean aBool;
private Date aDate;
private String aString;
private Set aSet;
public void setAInt(long aInt)
this.aInt = aInt;
public long getAInt()
return aInt;
public void setADouble(double aDouble)
this.aDouble = aDouble;
public double getADouble()
return aDouble;
public void setABool(boolean aBool)
this.aBool = aBool;
public boolean isABool()
return aBool;
public void setADate(Date aDate)
this.aDate = aDate;
public Date getADate()
return aDate;
public void setAString(String aString)
this.aString = aString;
public String getAString()
return aString;
public void setASet(Set aSet)
this.aSet = aSet;
public Set getASet()
return aSet;
and the corresponding ActionScript VO:
package vo
import mx.collections.ArrayCollection;
[Bindable]
[RemoteClass(alias="vo.TestVO")]
public class TestVO
public var aInt : int;
public var aDouble : Number;
public var aBool : Boolean;
public var aDate: Date;
public var aString : String ;
public var aSet : ArrayCollection = new ArrayCollection();
When passing an instantiated object back from java I get these errors in the console:
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ReferenceError: Error #1056: Cannot create property AInt on vo.TestVO.
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ReferenceError: Error #1056: Cannot create property ABool on vo.TestVO.
ReferenceError: Error #1056: Cannot create property ADate on vo.TestVO.
If I change my ActionScript VO to the following it works:
package vo
import mx.collections.ArrayCollection;
[Bindable]
[RemoteClass(alias="vo.TestVO")]
public class TestVO
public var AInt : int;
public var ADouble : Number;
public var ABool : Boolean;
public var ADate: Date;
public var AString : String ;
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I dont particulary want to use this naming convention for my variables. Making the Java variables public also works but I dont want to do this either?
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Cheers

Hey try this in your actionscript code
package vo
import mx.collections.ArrayCollection;
[Bindable]
[RemoteClass(alias="vo.TestVO")]
public class TestVO
private var _aInt:int;
private var _aDouble:Number;
private var _aBool:Boolean;
private var _aDate:Date;
private var _aString:String;
private var _aSet:ArrayCollection = new ArrayCollection();
public function get aInt():int{return _aInt;}
public function set aInt(aInt:int):void
this._aInt = aInt;
public function get aDouble():Number{
return _aDouble;
public function set aDouble(aDouble:Number):void{
this._aDouble = aDouble;
public function get aDate():Date{return this._aDate;}
public function set aDate(aDate:Date):void{
this._aDate = aDate;
public function get aString():String{return this._aString;}
public function set aString(aString:String):void{
this._aString = aString;
public function get aSet():ArrayCollection{return this._aSet;}
public function set aSet(aSet:ArrayCollection):void{
this._aSet = aSet;
---That should work cos I had the same problem today and that was how I solved it.
--Patrick

ReferenceError: Error #1056: Cannot create property 0 on Number.

Hi, I have an AS3 script that calls an XML but when compiling I get this error
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at mod::ML/parseData()
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<section id="SocialSection" active="true" visible="true" default="false">
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</section>
I think the issue is _loc_4 but not sure how to fix this. Thanks!

Hi, thanks for your reply. I did as you suggested and the error is here for ML
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and here for DM
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And it's more cryptic than before : ). I think the DM error is predictable because of the first one
The complete error list is
ReferenceError: Error #1056: Cannot create property 0 on Number.
at mod::ML/parseData()
at mng::DM/onXMLLoaded()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()
again, I think everything starts with ML script error
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this is the correspoding codeits referring to:
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