-#include <ardour/session.h>
-#include <ardour/region.h>
-#include <ardour/source_factory.h>
-#include <ardour/region_factory.h>
-#include <ardour/session_directory.h>
+#include "pbd/failed_constructor.h"
+#include "pbd/compose.h"
+#include "pbd/error.h"
+
+#include "ardour/session.h"
+#include "ardour/region.h"
+#include "ardour/region_factory.h"
+#include "ardour/session_directory.h"