solved key error

manual-window-detect.py

@@ -94,5 +94,5 @@ class ManualWindowDetect (datasets.GeneratorBasedBuilder):
                 yield idx, {
                     "image": os.path.join(images_dir, image_file),
                     "annotation": os.path.join(annotations_dir, image_id + ".png"),
-                    "scene_category": image_id2cat.loc[image_id, "scene_category"]
+                    "scene_category": image_id2cat.loc[int(image_id), "scene_category"]
                 }