Not working in "ember-cli": "~3.4.4"?

[bloodknight2010]

My version is ember 3.4 and "ember-source": "~3.4.0",. i write that code
this.infinity.model('modelname')
When I got the following error

Uncaught TypeError: Cannot read property 'pushObject' of undefined
at Infinity.model (infinity.js:277)
at

:1:7

how to solve and Pls help me.

[marcelotedeschi]

I'm also getting this error after upgrading ember-infinity from 1.2.3 -> 2.1.2. I'm also currently on Ember ~3.4.4

[snewcomer]

Anybody upgrade past 3.4.4 and it works?