ErrLookup › roboflow/supervision
roboflow/supervision
We write your reusable computer vision tools. 💜 · Python · 98 source files
Analyzed at 7f254d9784 on 2026-08-15. 364 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| overlap_metric is not supported, only 'IOU' and 'IOS' are… | validation | error | argument-validation, enum, iou, detection |
| Confusion matrix must have shape (..., 3), got | validation | error | metrics, mean-average-recall, internal-api, numpy, shape-validation |
| Invalid metric target | validation | warning | metrics, mean-average-recall, enum, validation, exhaustiveness-guard |
| Empty group detected when non-max-merging detections | validation | error | internal-invariant, non-max-merge, nms, detection |
| ` ` has shape ; expected (N, 4, 2) — each box must have… | validation | error | shape-validation, oriented-boxes, iou, numpy, detection |
| No labels defined for class_id= | validation | error | ci, packaging, manifest, drift, valueerror |
| results must be a list | validation | error | metrics, mean-average-precision, coco, validation, input-type |
| Evaluating predictions with segmentation is not supported. | exception | error | metrics, mean-average-precision, coco, segmentation, not-implemented |
| Number of labels ( ) must match number of key points ( ). | validation | error | ci, packaging, wheel, opencv, valueerror |
| Unsupported metric target for IoU calculation | validation | warning | metrics, mean-average-recall, enum, exhaustiveness-guard, internal-api |
| The number of predictions | validation | error | metrics, mean-average-recall, validation, input-shape, api-misuse |
| Contour border tracing did not converge | exception | critical | cv2-fallback, contours, internal-invariant, runtime-error |
| The number of predictions | validation | error | metrics, mean-average-precision, validation, internal-state, api-misuse |
| Expected string as result, got | validation | error | florence-2, vlm, task-mismatch, validation |
| Panoptic PNG masks must have at least 3 channels. | validation | error | panoptic-segmentation, png, transformers, image-decoding, valueerror |
| ' ' has entries but detections has - the two must stay… | validation | error | annotators, labels, alignment |
| All values in custom_values must be between 0 and 1. | validation | error | annotators, validation, color-mapping, numpy |
| ` ` has shape ; expected (N, 5) or (N, 6). | validation | error | shape-validation, oriented-boxes, nms, numpy, detection |
| Could not open video writer for | exception | error | video, opencv, file-io, codec |
| Overlap values must be greater than or equal to 0. Received | validation | error | inference-slicer, overlap, validation, valueerror |
| All KeyPoints must have the same coordinate depth per… | validation | error | keypoints, pose-estimation, merge, validation |
| Failed to save image to path | exception | error | image, save, opencv, filesystem, io |
| MeanAverageRecall metric requires `class_id` on both… | validation | error | metrics, mean-average-recall, class-id, validation, api-misuse |
| Invalid value: . Must be one of | validation | error | argument-validation, enum, nms, post-processing, detection |
| MeanAveragePrecision with `MetricTarget.MASKS` requires… | validation | error | metrics, mean-average-precision, masks, segmentation, validation |
| Percentage must be in the range [0, 1). | validation | error | argument-validation, polygons, geometry, range-check |
| Results do not correspond to current coco set | validation | error | metrics, mean-average-precision, coco, data-alignment, validation |
| MeanAverageRecall with `MetricTarget.MASKS` requires… | validation | error | metrics, mean-average-recall, masks, segmentation, validation |
| MeanAveragePrecision with… | validation | error | metrics, mean-average-precision, oriented-boxes, obb, validation |
| coco_predictions must be provided | validation | error | metrics, mean-average-precision, coco, null-check, constructor-validation |
| InferenceSlicer requires a projected coordinate reference… | validation | error | inference-slicer, geospatial, rasterio, crs, gdal, valueerror |
| Detections confidence must be provided for tracking. | validation | error | byte-track, tracking, detections, validation |
| Detection annotation for image | validation | error | dataset, class-id, out-of-range, coco, validation |
| Detection index is out of bounds for detections of length | validation | error | annotators, bounds-check, detections, filtering |
| Edge indices must use the 1-based convention and be within… | validation | error | validation, color, range, valueerror |
| coco_targets must be provided | validation | error | metrics, mean-average-precision, coco, null-check, constructor-validation |
| is not supported. | validation | error | detections, anchor, position, enum, api-contract |
| Failed to parse XML root from | validation | error | pascal-voc, dataset, xml, parsing |
| Number of colors ( ) must match number of key points ( ). | validation | error | ci, packaging, wheel, metadata, malformed, valueerror |
| masks_true and masks_detection must be 3D (N, H, W); got… | validation | error | masks, iou, shape-mismatch, validation |
| Cannot export dataset: image paths | validation | error | dataset, export, filenames, validation |
| the sum of the number of pixels in the RLE must be the same… | validation | error | rle, mask, resolution-mismatch, coco |
| Invalid COCO RLE counts. | validation | error | coco, rle, compact-mask, type-error, validation |
| starting_image_id and starting_annotation_id must be >= 1… | validation | error | coco, dataset-export, validation, argument-validation |
| Evaluating predictions with caption is not supported. | exception | error | metrics, mean-average-precision, coco, not-implemented, captions |
| Could not open video at | exception | critical | video, opencv, file-io, path |
| Expected shape (H,W), (H,W,3), or (H,W,4), got | validation | error | numpy, image-processing, shape-mismatch, pillow |
| Field ' ' should be consistently None or not None in both… | validation | error | merge, field-mismatch, detections, validation |
| `is_obb=True` requires | validation | error | yolo, obb, export, detections |
| Masks must be shaped (N, H, W) | validation | error | metrics, object-size, mask, shape-validation |
| Data pointed by URL could not be decoded into image. | validation | error | image, url, download, decode, network |
| Reader thread raised | exception | error | video, threading, exception-chaining, opencv |
| xyxyxyxy must have shape (N, 4, 2); got | validation | error | oriented-bounding-box, anchors, numpy, shape-validation, internal-api, valueerror |
| Invalid URL | validation | error | url, download, validation, parsing, encoding |
| Detections oriented bounding boxes are not available | validation | error | metrics, object-size, obb, missing-data |
| OBB data for each detection must have shape (4, 2), got | validation | error | yolo, obb, export, shape |
| Unsupported position | validation | error | annotators, position, enum |
| Detections mask is not available | validation | error | metrics, object-size, mask, missing-data |
| LabelMe annotation for | validation | error | labelme, dataset, masks, json |
| ` ` must be 2-D (N, 8) or 3-D (N, 4, 2), got shape . | validation | error | shape-validation, oriented-boxes, iou, numpy, detection |
| LabelMe polygon shape | validation | error | labelme, dataset, annotation, polygon, validation |
| module has no attribute | exception | error | validation, color, hex, valueerror |
| All sigma values must be positive | validation | error | validation, color, bgr, opencv, range, valueerror |
| Could not read image from path | validation | error | pascal-voc, dataset, opencv, image-io |
| Only None hierarchy is supported by the fallback | validation | error | cv2-fallback, drawing, contours, hierarchy |
| Shape of np.ndarray for key | validation | error | detections, numpy, shape-mismatch, data-dict |
| Unsupported MediaPipe result type. Expected an object with… | validation | error | keypoints, mediapipe, connector, api-mismatch |
| Detection annotation for image | validation | error | dataset, class-id, dtype, coco, validation |
| coordinate_convention must be 'inclusive' or 'exclusive'… | validation | error | converters, masks, convention, validation |
| Detections class_id must be an integer for YOLO export, got | validation | error | yolo, export, detections, dtype |
| LabelMe annotation has an invalid 'imagePath | validation | error | labelme, dataset, path-traversal, json |
| Expected string to end in location tags, but got | validation | error | florence-2, vlm, parsing, loc-tags |
| start_id must be greater than | validation | error | byte-track, tracking, validation, configuration |
| Unsupported image type | validation | error | type-error, annotators, numpy, pillow |
| Unsupported URL scheme | validation | error | url, download, validation, scheme |
| Evaluating predictions with keypoints is not supported. | exception | error | metrics, mean-average-precision, coco, keypoints, not-implemented |
| from_inference() operates on a single result at a time.You… | validation | error | metrics, precision, metric-target, defensive-code |
| image must be uint8, got | validation | error | gui, image-processing, dtype, numpy |
| Callback returned Detections for slices. Lengths must match. | validation | error | inference-slicer, batching, callback-contract, valueerror |
| F1Score metric requires `class_id` and `confidence` on… | validation | error | metrics, f1-score, validation, detections |
| Only RETR_TREE is supported by the fallback | validation | error | cv2-fallback, contours, retrieval-mode |
| Unsupported color lookup strategy | validation | error | annotators, enum, configuration, validation |
| All data dictionaries must have the same keys to merge. | validation | error | detections, merge, data-dict, key-mismatch |
| Invalid rectangle dimensions. | validation | error | drawing, geometry, bounds-check, validation |
| labels is a dict but class_id is None; KeyPoints must have… | validation | error | ci, packaging, wheel, opencv, extras, valueerror |
| Invalid hex color format | validation | error | color, validation, annotators |
| Drawing points must have shape (N, 2) or (N, 1, 2) | validation | error | cv2-fallback, drawing, pillow, shape-validation |
| Expected 'names' dict in data.yaml at | validation | error | yolo, dataset, yaml, config |
| Resolution width and height are required for moving… | validation | error | inference-slicer, segmentation-masks, coordinates, valueerror |
| write_frame requires an open VideoSink context. | exception | error | video, context-manager, lifecycle, api-misuse |
| COCO annotation refers to image | validation | error | coco, dataset-load, path-validation, data-quality |
| key_points.data must contain 'covariance' with shape (N, K… | validation | error | validation, color-palette, matplotlib, valueerror |
| Expected 'names' to be a list or dict in data.yaml at | validation | error | yolo, dataset, yaml, config |
| Invalid metric type | validation | error | metrics, object-size, enum, validation |
| MeanAverageRecall metric requires `confidence` on… | validation | error | metrics, mean-average-recall, confidence, validation, api-misuse |
| addWeighted inputs must have equal shapes | validation | error | opencv-fallback, numpy, shape-mismatch, image-blending |
| Only CHAIN_APPROX_SIMPLE is supported by the fallback | validation | error | cv2-fallback, contours, approximation-method |
| COCO RLE counts must be one-dimensional. | validation | error | coco, rle, compact-mask, segmentation, validation |
| Invalid value type: . Must be an instance of or str. | validation | error | enum, validation, nms, api-misuse |
| Invalid vlm value: . Must be one of | validation | error | vlm, enum, validation, config |