CollateralNotFoundException from the DDX

Hi,

Sorry, my question is a bit of naive.

I was trying to create a sample portfolio using Assembler.

The DDX file which I was using looks like below -

<DDX xmlns="http://ns.adobe.com/DDX/1.0/">

  <PDF result="final.pdf">

    <PDF source="/Applications/SampleApplication/1.0/form1.pdf"/>

    <PDF source="/Applications/SampleApplication/1.0/form2.pdf"/>

  </PDF>

  <?ddx-source-hint name="/Applications/SampleApplication/1.0/form1.pdf"?>

  <?ddx-source-hint name="/Applications/SampleApplication/1.0/form2.pdf"?>

</DDX>

form1.pdf and form2.pdf are at the paths mentioned in the application. I am passing this DDX as an input to the process, but it is giving me the exception -

Caused by: com.adobe.internal.pdfm.CollateralNotFoundException: DDXM_S14017: A <PDF> source document is required, but no documents were found for {PDF source="/Applications/TestApplication/1.0/form1.pdf"}.

The process properties which I set are below -

Can somebody help me in resolving this exception ?

Thanks