Index: MuseScore-4.2.1/src/importexport/musicxml/internal/musicxml/musicxmlsupport.cpp
===================================================================
--- MuseScore-4.2.1.orig/src/importexport/musicxml/internal/musicxml/musicxmlsupport.cpp
+++ MuseScore-4.2.1/src/importexport/musicxml/internal/musicxml/musicxmlsupport.cpp
@@ -24,6 +24,8 @@
  MusicXML support.
  */
 
+#include <QtCore/QString>
+#include <QtCore/qxmlstream.h>
 #include "translation.h"
 #include "engraving/dom/accidental.h"
 #include "engraving/dom/articulation.h"
Index: MuseScore-4.2.1/src/project/internal/exporttype.h
===================================================================
--- MuseScore-4.2.1.orig/src/project/internal/exporttype.h
+++ MuseScore-4.2.1/src/project/internal/exporttype.h
@@ -22,6 +22,8 @@
 #ifndef MU_PROJECT_EXPORTTYPE_H
 #define MU_PROJECT_EXPORTTYPE_H
 
+#include <QtCore/QList>
+#include <QtCore/QVariantList>
 #include <unordered_set>
 
 #include "containers.h"