ReferenceError: pageSession is not defined

[Polywick Studio]

Exception in template helper: searchString@http://localhost:3000/app/app.js?hash=ce8d9e62ecb3f49c649820802024dea147563544:2890:3
bindDataContext/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3051:14
Blaze._wrapCatchingExceptions/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1715:14
wrapHelper/</<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3103:14
Template._withTemplateInstanceFunc@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3744:12
wrapHelper/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3102:12
Spacebars.call@http://localhost:3000/packages/spacebars.js?hash=ebf9381e7fc625d41acb0df14995b7614360858a:172:12
Spacebars.mustacheImpl@http://localhost:3000/packages/spacebars.js?hash=ebf9381e7fc625d41acb0df14995b7614360858a:106:10
Spacebars.mustache@http://localhost:3000/packages/spacebars.js?hash=ebf9381e7fc625d41acb0df14995b7614360858a:110:16
value@http://localhost:3000/app/app.js?hash=ce8d9e62ecb3f49c649820802024dea147563544:2447:14
Blaze._withCurrentView@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2271:12
visitAttribute@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2199:15
visitAttributes@http://localhost:3000/packages/htmljs.js?hash=1ac878018eee6c53ed1375dc7ee75fc6865666ae:223:24
visitAttributes@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2193:12
Blaze._expandAttributes@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2221:11
updateAttributes@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1576:27
viewAutorun/</<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1934:18
Template._withTemplateInstanceFunc@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3744:12
viewAutorun/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1932:14
Blaze._withCurrentView@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2271:12
viewAutorun@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1931:12
Tracker.Computation.prototype._compute@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:339:5
Tracker.Computation@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:229:5
Tracker.autorun@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:613:11
Blaze.View.prototype.autorun@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1944:14
materializeTag@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1595:9
materializeDOMInner@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1504:24
Blaze._materializeDOM@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1474:3
Blaze._materializeDOM@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1483:7
doMaterialize@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2092:32
Tracker.nonreactive@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:640:12
doRender@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2090:9
viewAutorun/</<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1934:18
Template._withTemplateInstanceFunc@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3744:12
viewAutorun/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1932:14
Blaze._withCurrentView@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2271:12
viewAutorun@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1931:12
Tracker.Computation.prototype._compute@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:339:5
Tracker.Computation.prototype._recompute@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:358:9
Tracker._runFlush@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:532:9
onGlobalMessage@http://localhost:3000/packages/meteor.js?hash=cbcc712d51de4298c275e8dcf25c66c29914f19a:448:11
meteor.js:992:11
Exception from Tracker afterFlush function:
meteor.js:992:11
ReferenceError: pageSession is not defined
meteor.js:992:11
layout.js/<@http://localhost:3000/app/app.js?hash=ce8d9e62ecb3f49c649820802024dea147563544:2799:2
fireCallbacks/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3398:9
Template._withTemplateInstanceFunc@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3744:12
fireCallbacks@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3394:3
Template.prototype.constructView/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:3487:5
fire/</<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1845:11
Blaze._withCurrentView@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:2271:12
fire/<@http://localhost:3000/packages/blaze.js?hash=f33d3dfed63a491d24e3aa07ad66c24b5fe8c761:1844:9
Tracker._runFlush@http://localhost:3000/packages/tracker.js?hash=997515fa2d5b0530ba07741da556c4b36963ef3b:548:11
onGlobalMessage@http://localhost:3000/packages/meteor.js?hash=cbcc712d51de4298c275e8dcf25c66c29914f19a:448:11
meteor.js:992:11

[Polywick Studio]

Okay, i found it.

Please put in the top-most line of layout.js -

var pageSession = new ReactiveDict();