InputfieldPageAutocomplete must use InputfieldPageListSelection interface ?
When trying to choose a page from chained tree, getting error "Required parent" after i add InputfieldPageListSelectionlike other page field, its ok.
https://github.com/processwire/processwire/blob/44fcf13ea2d7f14a04eed54c29afcc79eb46ec45/wire/modules/Inputfield/InputfieldPageAutocomplete/InputfieldPageAutocomplete.module#L31
@trk That error means that you've selected a page that is not supported by the rules you've configured. For autocomplete, you'll either want to remove the "parent" setting, or make sure to include all of the allowed parents in your configuration.
With same rules, if i change input type to `PageListSelect" it works.
@trk That's because PageListSelect (and PageListSelectMultiple) use a tree selection with hierarchy, so the parent_id refers to to the root of the branch that you want to make pages selectable from. For all other page selection types, the parent_id represents a direct parent. I suppose you could always use has_parent in a selector if you needed to. With PageAutocomplete it's probably more common not to use a parent at all.