Component call

Hello ,

 I created a flex project main.mxml. And there are three component files which 
I am calling on the menu link in main.mml. Like there are location , contract, 
carrier are the menu links in main.mxml.  And locationComp.mxml , 
contractComp.mxml, carrierComp.mxml are the components. I am able to call two 
components from main.mxml but when I am calling third one it gives me error 
'Didn't recieve an acknowledge message' . 
  If u know about this error please let me know, so that I can move forward.

 Thank You,
 Magnet

Hello ,
 I got the solution, I am sharing here.

 	<companyComp id="companyComponent"
mainApp=""/>
 <!-- *****************COMPANIES GRID END***************** -->
 <!-- *****************CONTRACT START***************** -->
 					<contractComp id="contractComponent"
mainApp=""/>
 <!-- *****************CONTRACT END***************** -->
 <!-- *****************COST CENTERS GRID START***************** -->
 					<costcenterComp id="costcenterComponent"
mainApp=""/>
 <!-- *****************COST CENTERS GRID END***************** -->
 <!-- *****************LOCATIONS GRID START***************** -->
 					<locationComp id="locationComponent"
mainApp=""/>
 <!-- *****************LOCATIONS GRID END***************** -->
 <!-- *****************CARRIER GRID START***************** -->
 					<carrierComp id="carrierComponent"
mainApp=""/>


 In this way I able to run my components.