duplicati/duplicati · error · IncompleteJSONError

Incomplete JSON data

Error message

Incomplete JSON data

What it means

Error "Incomplete JSON data" thrown in duplicati/duplicati.

Source

Thrown at Tools/Commandline/RestoreFromPython/ijson.py:223

        elif symbol == 'true':
            yield ('boolean', True)
        elif symbol == 'false':
            yield ('boolean', False)
        elif symbol == '[':
            for event in parse_array(lexer):
                yield event
        elif symbol == '{':
            for event in parse_object(lexer):
                yield event
        elif symbol[0] == '"':
            yield ('string', unescape(symbol[1:-1]))
        else:
            try:
                yield ('number', number(symbol))
            except decimal.InvalidOperation:
                raise UnexpectedSymbol(symbol, pos)
    except StopIteration:
        raise IncompleteJSONError('Incomplete JSON data')

def parse_array(lexer):
    yield ('start_array', None)
    try:
        pos, symbol = next(lexer)
        if symbol != ']':
            while True:
                for event in parse_value(lexer, symbol, pos):
                    yield event
                pos, symbol = next(lexer)
                if symbol == ']':
                    break
                if symbol != ',':
                    raise UnexpectedSymbol(symbol, pos)
                pos, symbol = next(lexer)
        yield ('end_array', None)
    except StopIteration:
        raise IncompleteJSONError('Incomplete JSON data')

View on GitHub (pinned to 3f348be3e3)

Solutions

1. Provide the complete JSON file; the current file ends prematurely.
2. Verify the file was fully copied/downloaded before running the tool.

When it happens

Trigger: Thrown at Tools/Commandline/RestoreFromPython/ijson.py:223 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of duplicati/duplicati@3f348be3e3 (2026-08-13). Data as JSON: /api/errors/bb6afa49e1c9b0e2. Report an issue: GitHub.