using with angular 8 and ng-bootstrap throws an error

[canbax]

I'm using a-color-picker with angular 8 and ng-bootstrap.

I'm showing an NgbModal and inside that picker shown. I see the below error message (but it continues to work without a problem) It might be a bug of angular as well

ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'ng-untouched: true'. Current value: 'ng-untouched: false'.
at viewDebugError (core.js:28793)
at expressionChangedAfterItHasBeenCheckedError (core.js:28770)
at checkBindingNoChanges (core.js:29758)
at checkNoChangesNodeInline (core.js:44443)
at checkNoChangesNode (core.js:44416)
at debugCheckNoChangesNode (core.js:45377)
at debugCheckRenderNodeFn (core.js:45309)
at Object.eval [as updateRenderer] (ColorPickerComponent.html:9)
at Object.debugUpdateRenderer [as updateRenderer] (core.js:45294)
at checkNoChangesView (core.js:44251)