ErrLookup › huggingface/transformers
huggingface/transformers
🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training. · Python · 3,011 source files
Analyzed at a597f97485 on 2026-08-14. 523 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Tensor parallelism was requested, but WORLD_SIZE is not set… | exception | error | deepgemm, kernels, version-conflict, installation |
| Failed to convert | exception | error | weight-conversion, model-loading, chunk, checkpoint |
| ' ' is a per-layer attribute and may vary across layers… | validation | error | config, heterogeneity, attribute-access, ambiguity |
| TP and DP cannot be used together | exception | error | bitsandbytes, quantization, hardware, cuda, installation |
| Weight shape ( , ) not divisible by scale grid ( , ). | exception | error | fp8, mxfp4, dequantization, checkpoint-mismatch, shape-validation |
| Unsupported channel dimension | validation | error | image-processing, channel-dimension, enum, argument-validation |
| backbone_type not supported. | exception | error | backbone, internal, defensive, config |
| Config has `out_features` set to | exception | error | backbone, timm, config, checkpoint-mismatch |
| Cannot specify both size as an int, with… | exception | error | image-processing, config, resize, valueerror |
| Error with input length | validation | error | tokenization, padding, max-length, truncation |
| Error loading audio | exception | error | deepspeed, training, config-mismatch, trainer |
| Unsupported format | validation | error | image-processing, padding, argument-validation, numpy |
| File not found | exception | error | deepspeed, zero, config, hidden-size, training |
| Fp8Dequantize: weight/scale count mismatch for | exception | error | fp8, moe, checkpoint-corruption, state-dict, dequantization |
| Cannot reshape tensor with shape | exception | error | weight-conversion, conv3d, reshape, shape-mismatch |
| Attention sinks cannot be run on CPU with flex attention… | exception | error | flex-attention, attention-sinks, cpu, device, lse |
| Cannot flatten a bound method for pytree context | exception | error | export, dynamo, pytree, model-limitation |
| Cannot assign to field | exception | error | weight-conversion, immutability, api-misuse, programmer-error |
| Unsupported data format | validation | error | image-processing, channel-dimension, enum, argument-validation |
| Depending on the model, `size_divisor` or `pad_size` or… | validation | error | image-processing, preprocess, padding, argument-validation, configuration |
| The following attributes are missing | exception | error | heterogeneity, config, missing-attribute, per-layer, validation |
| Incorrect image source. Must be a valid URL starting with… | validation | error | image-processing, io, base64, file-path, loading |
| source keys= , target_patterns= but you can only have one… | exception | error | weight-conversion, cardinality, validation, programmer-error |
| Failed to load the finegrained-fp8 kernel — check that… | exception | error | fp8, quantization, kernels, torch-cuda-mismatch, import-error |
| Invalid input type. Must be a single audio or a list of… | exception | error | audio, input-validation, type-error |
| Multiple different capturing groups found in target_patterns | exception | error | weight-conversion, regex, pattern-mismatch, programmer-error |
| Could not make a flat list of images from | validation | error | image-processing, shape-validation, nesting, batching |
| Failed to convert `generate_flags` into a valid JSON… | validation | warning | cli, chat, json-parsing, generate-flags, valueerror |
| Invalid input type. Must be a single image, a list of… | validation | error | image-processing, shape-validation, nesting, batching |
| `rescale_factor` must be specified if `do_rescale` is… | validation | error | image-processing, preprocess, argument-validation, configuration |
| Expected pattern in collected tensors but only found… | exception | error | weight-conversion, moe, pattern-mismatch, model-loading |
| finegrained-fp8 kernel unavailable | exception | error | fp8, quantization, kernels, import-error, optional-dependency |
| Config has `stage_names` set to | exception | error | backbone, timm, config, checkpoint-mismatch |
| Unable to infer channel dimension format | validation | error | image-processing, channel-dimension, shape-inference |
| DeepGEMM has no float32 scale-factor path on Blackwell… | exception | error | |
| Failed to allocate blocks for request | exception | critical | continuous-batching, kv-cache, internal-invariant, concurrency, memory |
| Stop string preprocessing was unable to identify tokens… | validation | error | stop-strings, tokenizer-vocabulary, unicode, stopping-criteria, generation |
| The audio source is a | exception | error | deepgemm, megamoe, fp4, checkpoint-config, moe |
| Layer type ' ' requested, but config.layer_types is not… | exception | error | heterogeneity, config, layer-types, indexing |
| PermuteForRope expects a single tensor per key. | exception | error | weight-conversion, rope, permutation, model-loading |
| One of the two arguments is not a Cache | validation | error | cache, typeerror, encoder-decoder, constructor, transformers |
| can't find in , check dependency_versions_table.py | exception | error | dependencies, version-check, contributor, configuration |
| ` ` is only defined for dynamic cache, got for the self… | validation | error | cache, typeerror, dynamic-cache, static-cache, transformers |
| No baseline with name | exception | error | deepgemm, kernels, cuda, torch, installation, network |
| Input ids should be of shape (batch_size, input_len), but is | validation | error | pytorch, shape-validation, generation, logits-processor |
| Invalid channel dimension format | validation | error | image-processing, channel-dimension, enum, batching |
| batched_mm experts dispatch does not support… | exception | error | fp8, moe, quantization, config-mismatch, not-implemented |
| Invalid padding mode | validation | error | image-processing, padding, enum, argument-validation |
| out_features must be in the same order as stage_names… | exception | error | backbone, configuration, validation, ordering |
| DebugUnderflowOverflow: inf/nan detected, aborting as there… | exception | error | debugging, numerical-stability, mixed-precision, nan |
| Once the sliding window size has been reached… | exception | error | cache, kv-cache, sliding-window, generation |
| This method should be implemented by the derived class. | exception | error | backbone, not-implemented, abstract, subclassing |
| Unknown type for trial | exception | error | hpo, optuna, dependencies, trainer |
| Invalid image shape. Expected either | validation | error | image-processing, shape-validation, batching |
| `top_p` has to be a float > 0 and < 1, but is | validation | error | generation, top-p, nucleus-sampling, argument-validation |
| Layer type ' ' is not homogeneous across layers (layer… | validation | error | config, heterogeneity, per-layer-overrides, validation |
| Cannot reverse the transform with TP or quantization | exception | error | quantization, reverse-conversion, save-pretrained, unsupported-operation |
| No real solution (discriminant = ) | exception | critical | memory, solver, continuous-batching, math |
| Could not load kernel class from hub_repo= | validation | error | hub-kernels, loading, network |
| Current shard-on-read only supports disjoint ranges on a… | exception | error | tensor-parallel, sharding, checkpoint-loading, distributed |
| WeightConverter requires at least one operation. | exception | error | weight-conversion, validation, programmer-error |
| Invalid value for `do_sample`: expected a boolean, got | validation | error | generation, assisted-decoding, type-validation, do-sample |
| Training input is not a string | validation | error | xnli, data-processing, file-format, validation |
| Cannot flatten for pytree context | exception | error | export, dynamo, pytree, serialization |
| Layer type ' ' not found in config.layer_types: . Available… | exception | error | config, heterogeneity, layer-types, validation |
| Stage_names must be set for transformers backbones | exception | error | backbone, configuration, validation, computer-vision |
| Unknown backend ; expected 'auto', 'torchcodec', 'librosa'… | exception | error | deepgemm, megamoe, tensor-shape, moe, model-config |
| grouped_mm experts dispatch does not support… | exception | error | fp8, moe, quantization, config-mismatch, not-implemented |
| No valid predictions | validation | error | squad, metrics, question-answering, evaluation |
| finegrained-fp8 kernel is missing required symbols | exception | error | fp8, quantization, kernels, version-mismatch, import-error, cache |
| Argument ` ` is not a valid argument of `GenerationConfig`… | validation | error | generation-config, api-misuse, validation |
| Expected exactly one kernel repo regardless of device/mode… | validation | error | kernels, kernel-mapping, config-validation, kernelize |
| Invalid image type | validation | error | image-processing, type-checking, numpy, argument-validation |
| You have provided `mel_filters` but `power` is `None`. Mel… | exception | error | audio, mel-spectrogram, argument-validation |
| Can't load the configuration of | exception | error | generation-config, huggingface-hub, network, loading |
| Invalid hub repo for layer | validation | error | kernel-config, validation, hub-kernels |
| `flex_attention` does not support `dropout`. Please use it… | exception | error | flex-attention, attention, dropout, config, training-vs-inference |
| Missing librosa dependency for audio transcription. Install… | exception | error | dependency, audio, serving, importerror |
| Could not convert size input to size dict | exception | error | image-processing, type-coercion, config, valueerror |
| You are attempting to pad samples but the tokenizer you are… | exception | error | data-collator, padding, tokenizer, pad-token |
| out_indices must be in the same order as stage_names… | exception | error | config, backbone, validation, ordering |
| The following layers have the mutually exclusive… | exception | error | heterogeneity, config, sliding-window, attention, mutually-exclusive |
| Unrecognized image type | validation | error | image-processing, type-checking, argument-validation |
| Invalid return_format | exception | error | deepspeed, trainer, lifecycle, dtype |
| list index out of range | validation | error | config, index-error, heterogeneity, off-by-one |
| Unknown exporter type, got | exception | error | export, config, registry, validation |
| Saving an FSDP-wrapped model requires torch.distributed to… | exception | error | fsdp, distributed, checkpointing, process-group |
| Unsupported config file format | exception | error | deepgemm, fp8, static-quantization, activations |
| Can't load feature extractor for | exception | error | python, transformers, feature-extractor, hub-download, from-pretrained |
| `crop` was called, but the current layer does not track… | exception | error | cache, kv-cache, sliding-window, generation |
| No module matched pattern | validation | error | hub-kernels, fusion, pattern-matching, model-structure |
| Passing both `cache_implementation` (used to initialize… | validation | error | generation, cache, past-key-values, cache-implementation, conflicting-arguments |
| `prompt_ignore_length` has to be a positive integer, but is | validation | error | generation, repetition-penalty, argument-validation |
| CUDA is not available in this environment; cannot export to… | exception | error | export, executorch, cuda, environment, hardware |
| No benchmark was run successfully | exception | error | deepgemm, fp8, scale-format, ue8m0, blackwell |
| Source pattern ' ' contains \\1 backreference, but no… | exception | error | weight-conversion, regex, backreference, programmer-error |
| Greedy methods (do_sample != True) without beam search do… | validation | error | generation, generation-config, decoding, validation |
| must have one of the following set of keys: , got | validation | error | image-processing, config, validation, valueerror |
| decompose_prefill_decode failed for | exception | error | export, generation, inputs, transformers |
| tokens and scores need to be passed for a LLaMa tokenizer… | exception | error | gguf, tokenizer, metadata-parsing, llama-spm |