stack trace, cram after upgrade from 0.7.7 to 0.7.10

test

(conversocial)vagrant@precise64:~/conversocial/frontend$ node_modules/.bin/cram static/app/run.js build-options.json --output static/app/run.js
warning: grokking "static/app/run.js": Did not inspect code inside `.then()` callback(s).
`appRoot` is inferred to be "static/app"
`baseUrl` resolved to "/home/vagrant/conversocial/frontend/static/app/static"
`output` resolved to "/home/vagrant/conversocial/frontend/static/app/run.js"
Compiling preloads
cram failed:  Cannot use 'in' operator to search for 'poly/array' in undefined
TypeError: Cannot use 'in' operator to search for 'poly/array' in undefined
    at /home/vagrant/conversocial/frontend/node_modules/cram/cram.js:358:43
    at Array.some (native)
    at isExcluded (/home/vagrant/conversocial/frontend/node_modules/cram/cram.js:357:30)
    at /home/vagrant/conversocial/frontend/node_modules/cram/lib/compile.js:41:9
    at Object.then (/home/vagrant/conversocial/frontend/node_modules/cram/amd_modules/when/when.js:207:55)
    at when (/home/vagrant/conversocial/frontend/node_modules/cram/amd_modules/when/when.js:59:34)
    at resolveOne (/home/vagrant/conversocial/frontend/node_modules/cram/amd_modules/when/when.js:554:6)
    at /home/vagrant/conversocial/frontend/node_modules/cram/amd_modules/when/when.js:566:7
    at Object.then (/home/vagrant/conversocial/frontend/node_modules/cram/amd_modules/when/when.js:207:55)
    at when (/home/vagrant/conversocial/frontend/node_modules/cram/amd_modules/when/when.js:59:34)