Description of problem:
Try to access existing nodejs-0.6 app after migration,but failed to access.It return 503,but app's status is started.

Could not reproduce this issue  on devenv_3966 which is upgraded from devenv_stage_528.

Version-Release number of selected component (if applicable):
INT(devenv_3965)

How reproducible:
Always

Steps to Reproduce:
1.Create some nodejs-0.6 apps
2.INT upgrade
3.Access the app's url

Actual results:
1.
my nodejs-0.6 app:
nd6 @ http://nd6-wsun1int.int.rhcloud.com/ (uuid: 5264ecfe6cec0e38c600020d)

3.Could not access the app's url

Expected results:
App could be accessed

Additional info:
1.[nd6-wsun1int.int.rhcloud.com runtime]\> ls -a
.		    .preupgrade_state			   .upgrade_complete_create_dep_symlinks	    .upgrade_complete_stop_gear
..		    repo				   .upgrade_complete_create_initial_deployment_dir  .upgrade_itinerary
build-dependencies  .state				   .upgrade_complete_inspect_gear_state
data		    .upgrade_complete_add_deployments_dir  .upgrade_complete_pre_upgrade
dependencies	    .upgrade_complete_compute_itinerary    .upgrade_complete_restore_repo


2.nodejs.log
DEBUG:     throw new Error("Cannot find module '" + request + "'");

DEBUG: Error: Cannot find module 'express'
    at Function._resolveFilename (module.js:337:11)
    at Function._load (module.js:279:25)
    at Module.require (module.js:359:17)
    at require (module.js:375:17)
    at Object.<anonymous> (/var/lib/openshift/5264ecfe6cec0e38c600020d/app-root/runtime/repo/server.js:3:15)
    at Module._compile (module.js:446:26)
    at Object..js (module.js:464:10)
    at Module.load (module.js:353:31)
    at Function._load (module.js:311:12)
    at Array.0 (module.js:484:10)

DEBUG: Program node server.js exited with code 1

DEBUG: Starting child process with 'node server.js'
DEBUG:

DEBUG: module.js:337