{"record":{"id":"046135715ab8c1bc","repo":"rohitg00/ai-engineering-from-scratch","slug":"max-caption-len-must-be-4-for-make-pair-got","errorCode":null,"errorMessage":"max_caption_len must be >= 4 for make_pair(), got {cfg.max_caption_len}","messagePattern":"max_caption_len must be >= 4 for make_pair\\(\\), got (.+?)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"phases/19-capstone-projects/60-projection-layer-modality-align/code/main.py","lineNumber":143,"sourceCode":"    for p in module.parameters():\n        p.requires_grad_(False)\n\n\n@dataclass\nclass TrainStats:\n    initial_loss: float\n    final_loss: float\n    final_cos: float\n    losses: list[float]\n\n\ndef train(cfg: AlignConfig) -> tuple[MLPProjector, TrainStats]:\n    if cfg.pairs <= 0:\n        raise ValueError(f\"pairs must be > 0, got {cfg.pairs}\")\n    if cfg.steps <= 0:\n        raise ValueError(f\"steps must be > 0, got {cfg.steps}\")\n    if cfg.max_caption_len < 4:\n        raise ValueError(\n            f\"max_caption_len must be >= 4 for make_pair(), got {cfg.max_caption_len}\"\n        )\n\n    torch.manual_seed(cfg.seed)\n\n    encoder_cfg = ViTConfig(image_size=224, patch_size=16, hidden=cfg.vision_hidden,\n                            depth=4, heads=8, mlp_ratio=2.0)\n    encoder = VisionEncoder(encoder_cfg).eval()\n    freeze(encoder)\n\n    text = MockTextEmbedding(cfg.vocab_size, cfg.text_hidden, seed=cfg.seed + 1)\n    freeze(text)\n\n    projector = MLPProjector(cfg.vision_hidden, cfg.projection_hidden, cfg.text_hidden)\n\n    pairs = [make_pair(seed=cfg.seed + 1000 + i,\n                       vocab_size=cfg.vocab_size,\n                       max_len=cfg.max_caption_len) for i in range(cfg.pairs)]","sourceCodeStart":125,"sourceCodeEnd":161,"githubUrl":"https://github.com/rohitg00/ai-engineering-from-scratch/blob/39ea8a1c6d0b61f071226eff7ede4d4105fed820/phases/19-capstone-projects/60-projection-layer-modality-align/code/main.py#L125-L161","documentation":"Error \"max_caption_len must be >= 4 for make_pair(), got {cfg.max_caption_len}\" thrown in rohitg00/ai-engineering-from-scratch.","triggerScenarios":"Thrown at phases/19-capstone-projects/60-projection-layer-modality-align/code/main.py:143 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"39ea8a1c6d0b61f071226eff7ede4d4105fed820","analyzedAt":"2026-08-26T03:13:46.626Z","schemaVersion":2},"datasetVersion":"2026-08-26T07:17:17.940Z"}