CC is ignoring the second ant task

I have two ant tasks in my config file. CC is invoking only the first ant task and ignoring the second ant task.
   <schedule interval="30" >
         <ant buildfile="getsrc.xml" target="clean" multiple="1" />
         <ant buildfile="build.xml" target="build" multiple="1" />
      </schedule>

I have only one modificationset. I want to run the two ant tasks on the basis of one modification. I am using two different build files to do this.

Please tell me a way to resolve this problem. I appreciate your help.

Thanks

Satyapal

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