I found a solution for this problem.
I will post it if I can help someone else with this.
In my application-context I deleted this:
Code:
<object class="org.springextensions.actionscript.ioc.factory.config.flex.FlexPropertyPlaceholderConfigurer">
<property name="location"
value="application-context.properties.txt"/>
</object>
then I changed my remoteobject with a ref instead of value:
Code:
<object id="remoteObject"
class="mx.rpc.remoting.mxml.RemoteObject"
abstract="true">
<property name="endpoint"
ref="mobileModelLocator.endPointUrl"/>
<property name="showBusyCursor"
value="true"/>
</object>
If there's still a problem pm me