Custom recipe error - blocks: extra fields not permitted

Hi, I'm trying to build an interface with two blocks, one displaying some html and the other displaying the actual ner.manual component.

However, the custom recipe always fails with the error blocks: extra fields are not permitted

Here are the details: -> I started with ner.manual as a base and modified it

import prodigy
from prodigy.components.loaders import JSONL
from prodigy.components.preprocess import add_tokens
from prodigy.util import split_string
import spacy
from typing import List, Optional

# Recipe decorator with argument annotations: (description, argument type,
# shortcut, type / converter function called on value before it's passed to
# the function). Descriptions are also shown when typing --help.
    dataset=("The dataset to use", "positional", None, str),
    spacy_model=("The base model", "positional", None, str),
    source=("The source data as a JSONL file", "positional", None, str),
    label=("One or more comma-separated labels", "option", "l", split_string),
    exclude=("Names of datasets to exclude", "option", "e", split_string),
def ner_checks(
    dataset: str,
    spacy_model: str,
    source: str,
    label: Optional[List[str]] = None,
    exclude: Optional[List[str]] = None,
    # Load the spaCy model for tokenization
    nlp = spacy.load(spacy_model)
    # Load the stream from a JSONL file and return a generator that yields a
    # dictionary for each example in the data.
    stream = JSONL(source)
    # Tokenize the incoming examples and add a "tokens" property to each
    # example. Also handles pre-defined selected spans. Tokenization allows
    # faster highlighting, because the selection can "snap" to token boundaries.
    stream = add_tokens(nlp, stream)
    return {
        "view_id": "blocks",  # Annotation interface to use
        "dataset": dataset,  # Name of dataset to save annotations
        "stream": stream,  # Incoming stream of examples
        "exclude": exclude,  # List of dataset names to exclude
        "config": {  # Additional config settings, mostly for app UI
            "lang": nlp.lang,
            "labels": label,  # Selectable label options
        "blocks": [

{"text": "some text","html": "some html"} ...

prodigy ner.checks test_dataset2 blank:en .\data.jsonl --label "A,B,C" -F .\

Could you help me figure out why this isn't working?

Okay, nevermind. "blocks" needs to be inside the "config" object which I completely missed. Error resolved.

1 Like