diff --git a/src/plugins/qmldesigner/libs/designercore/include/sourcepathids.h b/src/plugins/qmldesigner/libs/designercore/include/sourcepathids.h
index 8cf22df5a10..8c1b1c5a9db 100644
--- a/src/plugins/qmldesigner/libs/designercore/include/sourcepathids.h
+++ b/src/plugins/qmldesigner/libs/designercore/include/sourcepathids.h
@@ -34,7 +34,7 @@ public:
     using IsBasicId = std::true_type;
     using DatabaseType = long long;
 
-    constexpr explicit SourceId() = default;
+    constexpr SourceId() = default;
 
     static constexpr SourceId create(DirectoryPathId directoryPathId, FileNameId fileNameId)
     {
diff --git a/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorage.cpp b/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorage.cpp
index bae87b3a9c7..b66d15c5676 100644
--- a/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorage.cpp
+++ b/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorage.cpp
@@ -132,6 +132,8 @@ struct ProjectStorage::Statements
         "defaultPropertyId=propertyDeclarationId "
         "WHERE t.typeId=?",
         database};
+    mutable Sqlite::ReadStatement<2, 1> selectTypeNameAndSourceIdByTypeIdStatement{
+        "SELECT name, sourceId FROM types WHERE typeId=?", database};
     mutable Sqlite::ReadStatement<5, 1> selectExportedTypesByTypeIdStatement{
         "SELECT moduleId, typeId, name, majorVersion, minorVersion "
         "FROM exportedTypeNames "
@@ -4428,9 +4430,13 @@ void ProjectStorage::checkForPrototypeChainCycle(TypeId typeId) const
                                category(),
                                keyValue("type id", typeId)};
 
-    auto callback = [=](TypeId currentTypeId) {
-        if (typeId == currentTypeId)
+    auto callback = [&](TypeId currentTypeId) {
+        if (typeId == currentTypeId) {
+            auto [name, sourceId] = s->selectTypeNameAndSourceIdByTypeIdStatement
+                                        .value<std::tuple<Utils::SmallString, SourceId>>(typeId);
+            errorNotifier->prototypeCycle(name, sourceId);
             throw PrototypeChainCycle{};
+        }
     };
 
     s->selectPrototypeAndExtensionIdsStatement.readCallback(callback, typeId);
diff --git a/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorageerrornotifierinterface.h b/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorageerrornotifierinterface.h
index df4efdc89b6..18bd1d03842 100644
--- a/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorageerrornotifierinterface.h
+++ b/src/plugins/qmldesigner/libs/designercore/projectstorage/projectstorageerrornotifierinterface.h
@@ -32,6 +32,7 @@ public:
         = 0;
 
     virtual void qmltypesFileMissing(QStringView qmltypesPath) = 0;
+    virtual void prototypeCycle(Utils::SmallStringView typeName, SourceId typeSourceId) = 0;
 
 protected:
     ~ProjectStorageErrorNotifierInterface() = default;
diff --git a/src/plugins/qmldesigner/project/projectstorageerrornotifier.cpp b/src/plugins/qmldesigner/project/projectstorageerrornotifier.cpp
index 25646c21a35..b03d68370ff 100644
--- a/src/plugins/qmldesigner/project/projectstorageerrornotifier.cpp
+++ b/src/plugins/qmldesigner/project/projectstorageerrornotifier.cpp
@@ -89,4 +89,13 @@ void ProjectStorageErrorNotifier::qmltypesFileMissing(QStringView qmltypesPath)
              qmltypesPath);
 }
 
+void ProjectStorageErrorNotifier::prototypeCycle(Utils::SmallStringView typeName, SourceId typeSourceId)
+{
+    const QString typeNameString{typeName};
+
+    logIssue(ProjectExplorer::Task::Error,
+             Tr::tr("Prototype cycle detected for type %1 in %2.").arg(typeNameString),
+             m_pathCache.sourcePath(typeSourceId));
+}
+
 } // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/project/projectstorageerrornotifier.h b/src/plugins/qmldesigner/project/projectstorageerrornotifier.h
index 03606259d43..3fd4441bd52 100644
--- a/src/plugins/qmldesigner/project/projectstorageerrornotifier.h
+++ b/src/plugins/qmldesigner/project/projectstorageerrornotifier.h
@@ -28,6 +28,7 @@ public:
                                                 SourceId qmlDocumentSourceId,
                                                 SourceId qmldirSourceId) override;
     void qmltypesFileMissing(QStringView qmltypesPath) override;
+    void prototypeCycle(Utils::SmallStringView typeName, SourceId typeSourceId) override;
 
 private:
     PathCacheType &m_pathCache;
diff --git a/tests/unit/tests/mocks/projectstorageerrornotifiermock.h b/tests/unit/tests/mocks/projectstorageerrornotifiermock.h
index e58b27d1a33..0a576075560 100644
--- a/tests/unit/tests/mocks/projectstorageerrornotifiermock.h
+++ b/tests/unit/tests/mocks/projectstorageerrornotifiermock.h
@@ -33,4 +33,8 @@ public:
                  QmlDesigner::SourceId qmldirSourceId),
                 (override));
     MOCK_METHOD(void, qmltypesFileMissing, (QStringView qmltypesPath), (override));
+    MOCK_METHOD(void,
+                prototypeCycle,
+                (Utils::SmallStringView typeName, QmlDesigner::SourceId typeSourceId),
+                (override));
 };
diff --git a/tests/unit/tests/unittests/projectstorage/projectstorage-test.cpp b/tests/unit/tests/unittests/projectstorage/projectstorage-test.cpp
index acf7ead2e30..4004033216b 100644
--- a/tests/unit/tests/unittests/projectstorage/projectstorage-test.cpp
+++ b/tests/unit/tests/unittests/projectstorage/projectstorage-test.cpp
@@ -4448,6 +4448,32 @@ TEST_F(ProjectStorage, throw_for_prototype_chain_cycles)
                  QmlDesigner::PrototypeChainCycle);
 }
 
+TEST_F(ProjectStorage, notifies_error_for_prototype_chain_cycles)
+{
+    auto package{createSimpleSynchronizationPackage()};
+    package.types[1].prototype = Storage::Synchronization::ImportedType{"Object2"};
+    package.types.push_back(Storage::Synchronization::Type{
+        "QObject2",
+        Storage::Synchronization::ImportedType{"Item"},
+        Storage::Synchronization::ImportedType{},
+        TypeTraitsKind::Reference,
+        sourceId3,
+        {Storage::Synchronization::ExportedType{pathToModuleId, "Object2"},
+         Storage::Synchronization::ExportedType{pathToModuleId, "Obj2"}}});
+    package.imports.emplace_back(pathToModuleId, Storage::Version{}, sourceId2);
+    package.imports.emplace_back(qtQuickModuleId, Storage::Version{}, sourceId3);
+    package.imports.emplace_back(pathToModuleId, Storage::Version{}, sourceId3);
+
+    EXPECT_CALL(errorNotifierMock, prototypeCycle(Eq("QObject2"), sourceId3));
+
+    EXPECT_ANY_THROW(
+        storage.synchronize(SynchronizationPackage{package.imports,
+                                                   package.types,
+                                                   {sourceId1, sourceId2, sourceId3},
+                                                   package.moduleDependencies,
+                                                   package.updatedModuleDependencySourceIds}));
+}
+
 TEST_F(ProjectStorage, throw_for_extension_chain_cycles)
 {
     auto package{createSimpleSynchronizationPackage()};