I have a site catalog as follows

<?xml version="1.0" encoding="UTF-8"?>
<sitecatalog xmlns="http://pegasus.isi.edu/schema/sitecatalog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://pegasus.isi.edu/schema/sitecatalog http://pegasus.isi.edu/schema/sc-4.0.xsd" version="4.0">

    <site handle="local" arch="x86" os="LINUX">
        <directory type="shared-scratch" path="/data/scratch/vahi/work/creamce/test/creamce-sharedfs/work">
            <file-server operation="all" url="file:///data/scratch/vahi/work/creamce/test/creamce-sharedfs/work"/>
        </directory>
        <directory type="local-storage" path="/data/scratch/vahi/work/creamce/test/creamce-sharedfs/outputs">
            <file-server operation="all" url="file:///data/scratch/vahi/work/creamce/test/creamce-sharedfs/outputs"/>
        </directory>
        <profile namespace="condor" key="getenv">true</profile>
    </site>

    <site handle="creamce" arch="x86" os="LINUX">
        <grid type="cream" contact="https://ce01-lcg.cr.cnaf.infn.it:8443/ce-cream/services/CREAM2" scheduler="LSF" jobtype="compute" />
        <grid type="cream" contact="https://ce01-lcg.cr.cnaf.infn.it:8443/ce-cream/services/CREAM2" scheduler="LSF" jobtype="auxillary" />

        <directory type="shared-scratch" path="/storage/gpfs_virgo3/">
            <!-- <file-server operation="all" url="gsiftp://ce01-lcg.cr.cnaf.infn.it/home/virgo034/virgo"/>
            <file-server operation="all" url="gsiftp://gridftp-storm-archive.cr.cnaf.infn.it/storage/gpfs_virgo3/virgo"/> -->
             
               <file-server operation="all" url="srm://storm-fe-archive.cr.cnaf.infn.it:8444/srm/managerv2?SFN=/virgo3/"/>
        </directory>
        
        <profile namespace="pegasus" key="style">cream</profile>
        <profile namespace="globus" key="queue">virgo</profile>
        <profile namespace="env" key="PEGASUS_HOME">/storage/gpfs_virgo3/virgo/pegasus-4.2.0-cvs</profile>
    </site>

</sitecatalog>

My stagein jobs failed because the URL for executables staged was incorrect
vahi@obelix:/data/scratch/vahi/work/creamce/test/creamce-sharedfs/work/vahi/pegasus/blackdiamond/run0021$ more stage_in_local_creamce_0_0.in
# src 1 local prio 0
file:///data/scratch/vahi/work/creamce/test/creamce-sharedfs/f.a
# dst 1 creamce
srm://storm-fe-archive.cr.cnaf.infn.it:8444/srm/managerv2?SFN=/virgo3//vahi/pegasus/blackdiamond/run0021/f.a
# src 2 local prio 0
file:///data/scratch/vahi/work/creamce/test/creamce-condorio/pegasus-4.2.0-cvs/bin/pegasus-keg
# dst 2 creamce
srm://storm-fe-archive.cr.cnaf.infn.it:8444/storage/gpfs_virgo3/vahi/pegasus/blackdiamond/run0021/pegasus-preprocess-4.0

The destination url for pegasus-preprocess-4.0 is incorrect.