3 files changed, 19 insertions, 1 deletions
diff --git a/tools/qmltc/main.cpp b/tools/qmltc/main.cpp
index 3d412182ea..afc9cf95dc 100644
--- a/tools/qmltc/main.cpp
+++ b/tools/qmltc/main.cpp
@@ -291,8 +291,14 @@ int main(int argc, char **argv)
                                   QString(), QString(), QString());
     passMan->analyze(QQmlJSScope::createQQmlSAElement(visitor.result()));
 
-    if (logger.hasErrors())
+    if (logger.hasErrors()) {
+        if (visitor.hasSeenCustomParsers()) {
+            logger.log(QStringLiteral("qmltc does not support custom parsers such as ListModel or "
+                                      "old forms of Connections and PropertyChanges."),
+                       qmlCompiler, QQmlJS::SourceLocation());
+        }
         return EXIT_FAILURE;
+    }
 
     QList<QQmlJS::DiagnosticMessage> warnings = importer.takeGlobalWarnings();
     if (!warnings.isEmpty()) {
diff --git a/tools/qmltc/qmltcvisitor.cpp b/tools/qmltc/qmltcvisitor.cpp
index dee3426598..2d1c61bc19 100644
--- a/tools/qmltc/qmltcvisitor.cpp
+++ b/tools/qmltc/qmltcvisitor.cpp
@@ -337,6 +337,13 @@ void QmltcVisitor::endVisit(QQmlJS::AST::UiProgram *program)
             checkNamesAndTypes(type);
 }
 
+bool QmltcVisitor::checkCustomParser(const QQmlJSScope::ConstPtr &scope)
+{
+    if (QQmlJSImportVisitor::checkCustomParser(scope))
+        m_seenCustomParsers = true;
+    return false;
+}
+
 QQmlJSScope::ConstPtr fetchType(const QQmlJSMetaPropertyBinding &binding)
 {
     switch (binding.bindingType()) {
diff --git a/tools/qmltc/qmltcvisitor.h b/tools/qmltc/qmltcvisitor.h
index b96c19063f..42b220ed97 100644
--- a/tools/qmltc/qmltcvisitor.h
+++ b/tools/qmltc/qmltcvisitor.h
@@ -135,6 +135,9 @@ public:
     enum Mode { Import, Compile };
     void setMode(Mode mode) { m_mode = mode; }
 
+    bool checkCustomParser(const QQmlJSScope::ConstPtr &scope) override;
+    bool hasSeenCustomParsers() const { return m_seenCustomParsers; }
+
 protected:
     QStringList m_qmlTypeNames; // names of QML types arranged as a stack
     QHash<QString, int> m_qmlTypeNameCounts;
@@ -184,6 +187,8 @@ protected:
     QHash<QQmlJSScope::ConstPtr, int> m_typesWithId;
 
     Mode m_mode = Mode::Import;
+
+    bool m_seenCustomParsers = false;
 };
 
 QT_END_NAMESPACE