diff --git a/src/libslic3r/Format/bbs_3mf.cpp b/src/libslic3r/Format/bbs_3mf.cpp
index be83731d0..1c8683faf 100644
--- a/src/libslic3r/Format/bbs_3mf.cpp
+++ b/src/libslic3r/Format/bbs_3mf.cpp
@@ -4750,6 +4750,11 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
             store_params.thumbnail_data, store_params.proFn, store_params.calibration_thumbnail_data, store_params.id_bboxes, store_params.project, store_params.export_plate_idx);
         if (result) {
             boost::filesystem::rename(filename + ".tmp", filename, ec);
+            if (ec) {
+                add_error("Failed to rename file: " + ec.message());
+                boost::filesystem::remove(filename + ".tmp", ec);
+                return false;
+            }
             if (!(store_params.strategy & SaveStrategy::Silence))
                 boost::filesystem::save_string_file(store_params.model->get_backup_path() + "/origin.txt", filename);
         }
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index f9339f370..a95440197 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -7414,7 +7414,11 @@ int Plater::save_project(bool saveAs)
         return wxID_CANCEL;
 
     //BBS export 3mf without gcode
-    export_3mf(into_path(filename), SaveStrategy::SplitModel);
+    if (export_3mf(into_path(filename), SaveStrategy::SplitModel) < 0) {
+        MessageDialog(this, _L("Failed to save project!\nPlease make sure the project file has not been opened by other program and try again."), 
+            _L("Save project"), wxOK | wxICON_WARNING).ShowModal();
+        return wxID_CANCEL;
+    }
 
     Slic3r::remove_backup(model(), false);