error on building for

Hi,

I have been working with version 4.1 of your product so far.
However when I want to switch to version 5.4.2 I get an error building my form.
This is at line 5923 of webix because this._master.size[0] is undefined.

Where there breaking changes between these versions ?

Check https://docs.webix.com/migration.html

As far as I can see there were no breaking changes related to the Form widget

I have checked the latest webix codebase, and I can’t locate that string this._master.size[0]

Are you sure that the above line is part of Webix and not some customization from your side ?

sorry line 5923 this._master_size[0]

There were no changes in the problematic code line, still, it may be caused by some other changes.

The line in question is sizing element inside of the form, and the error can occur if such sizing occurs before the parent form sizing. I’m not quite sure how it can be, maybe you are using some fancy way of form building.

If the issue still occurs, can you repeat the problem here - https://snippet.webix.com/ and share the link.