portal error amber

gistfile1.txt

Error running js:build:
path.existsSync is now called `fs.existsSync`.

Tracing dependencies for: compiled/tinymce

/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:10872
            throw err;
                  ^
Error: Error: Error evaluating module "undefined" at location "/home/hudson/canvas-lms/public/optimized/backbone.js":
Error: ENOENT, no such file or directory '/home/hudson/canvas-lms/public/optimized/backbone.js'
fileName:/home/hudson/canvas-lms/public/optimized/backbone.js
lineNumber: undefined
http://requirejs.org/docs/errors.html#defineerror
In module tree:
    compiled/bundles/assignment_edit
      compiled/models/DueDateList

    at Function.require.onError (/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:10869:23)
    at execManager (/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:615:28)
    at /home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:643:25
    at execManager (/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:620:17)
    at /home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:643:25
    at execManager (/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:620:17)
    at /home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:643:25
    at execManager (/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:620:17)
    at /home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:643:25
    at execManager (/home/hudson/canvas-lms/node_modules/requirejs/bin/r.js:620:17)

ABORTING
/home/hudson/canvas-lms/lib/tasks/js.rake:102:in `block (3 levels) in <top (required)>'
/home/hudson/canvas-lms/lib/tasks/js.rake:100:in `block (2 levels) in <top (required)>'
/home/hudson/canvas-lms/lib/tasks/portal.rake:27:in `block (3 levels) in <top (required)>'
Tasks: TOP => js:build