class

Tryst::UI::ClosedBuilderError

Inherits Exception < Reference < Object

Raised when a DSL build method (ui.button, ui.panel, ...) is called after the build has already realized - the tree is only ever walked into Tk once, at realize, so anything appended to it afterward would just silently never show up.

Constructors

new(message = "the build has already realized - use session.add(parent_name) { } to add widgets to an already-running app instead")
Source