I am trying to use Lazy Reference Selector in my project, it displays an error message "An error occured, please contact your system administrator." as soon as page loads. Also it displays "Could not create widget lazyrefkit.widget.LazyRefSelector: TypeError: Clas is not a constructor" instead of widget. This issue persists with Mx5.6.0 and Mx5.8.0. P.S; I have used the correct versions of Lazy Reference Selector widget for creation.
Praveen Kumar Velisetty
Just tested this with the 5.9.1 compatible version in Mendix 5.8.1 and the widget works as it should.
Maybe you can try to clean your deployment directory?
Or maybe you have other widgets on the same page causing the issue. Then remove them and see if that helps.