Update app.py

app.py

@@ -218,7 +218,7 @@ class AdvancedRAG:
             # Create a new file
             with tempfile.NamedTemporaryFile(delete=False, suffix=os.path.splitext(file.name)[1]) as tmp:
                 # Write the file content to the temporary file
-                with open(file.name, 'rb') as f:
+                with open(file.path, 'rb') as f:
                     tmp.write(f.read())
                 tmp.flush()