shell - Unable to build packages for whole project through script -

i working on continuos integration part(auto build).i unable build pkgs given script pkgs.

selid1t601.xayybol.57> vi all_vobs1.sh #!/bin/sh   vobs=""  vobs="bulkcm/src ${vobs}" vobs="ncms/src ${vobs}" vobs="cna/src ${vobs}" vobs="cnai/src ${vobs}" vobs="cnamb/src ${vobs}" vobs="gpi/src ${vobs}" vobs="cdmart/src ${vobs}" vobs="rah/src ${vobs}" vobs="isp ${vobs}" vobs="tckg ${vobs}" vobs="prop/src ${vobs}"  echo $vobs 

the above script contains vob of files required package build.

if comment few of them package building successful , uncomment commented vobs , comment uncommented vobs pkgs build successful.

if uncomment of them pkgs build failing of vobs not consistent

can please suggest cause of issue?

in continuous integration there can dependencies present in between files. cannot uncomment of the vobs , continue build, if uncommenting vobs, check dependencies of respective files under vob path. if can resolve dependencies, may proper build.