Using plugin in Angular ng2-charts

[mikegoodstadt]

Hi! Can anyone give pointers on how to use this plugin in Angular via the ng2-charts package?
Here is a StackBlitz which in theory is setup but is not working... :((
https://stackblitz.com/edit/ng2-charts-gantt-horizontalbar?file=src/app/app.component.ts
This gives the error:

Import error, can't find files:
../elements/rect
../core/utils
./controllers/gantt
./scales/linear-gantt
./scales/time-gantt
./scale-utils

Any suggestions most welcome...