I am using wijmo flex grid I am getting below error.
Assertion failed in Wijmo: Number expected. Error
Assertion failed in Wijmo: Number expected. Error
Assertion failed in Wijmo: Number expected. Error
I am able to bind wijmo flex grid, but showing above error in console.`
I was having the same issue, and the way I solved it was by ensuring that my column definition controls 'wj-flex-grid-column' in html were receiving the width property as a number type value, following this example from their intro guide: wj-flex-grid-column
Hope that helps you and solves your problem!! https://demos.wijmo.com/5/angular2/flexgridintro/flexgridintro/