Version: Qyoto 4.4 (libqyoto4.4-cil / package 4.2.2-0ubuntu2) (using KDE 4.2.2) Compiler: GMCS (Mono C# compiler) version 2.0.1.0 & UICS (Qt User Interface compiler) version 4.5.0 OS: Linux Installed from: Ubuntu Packages The files produced by Qt Designer version 4.5.0 are incompatibles with UICS compiler version 4.5.0. When I try to compile an .ui file with UICS, I obtain the following error : "uics: File generated with too old version of Qt Designer File 'MainWindow.ui' is not valid" The .ui file contains an XML prolog (<?xml version="1.0" encoding="UTF-8"?>) that UICS don't understand. If I remove the XML prolog, the compilation goes fine. UICS should not produce error if XML prolog is present in .ui files. The dialect used by .ui files is plain XML.
This is already fixed in trunk. Seems like we have to backport it.