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Unclosed Attribute Specifier

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An attribute specifier ({...}) was opened but never closed before the end of the block.

Q-2-38 — Unclosed Attribute Specifier

I reached the end of the block before finding a closing } for the attribute specifier.

What this means

An attribute specifier — the {...} annotation that attaches classes, ids, or key-value pairs to a span, link, or image — was opened with { but the block ended before a matching } appeared:

[text]{#my-id

The parser reads everything up to the end of the block looking for the closing brace, so the error is reported at the end of the block rather than at the opening {.

Why this happens

  • A forgotten closing brace after an id, class, or key-value pair: [text]{.important instead of [text]{.important}.

  • An attribute list spread across lines that never closes:

    [text]{
  .cls
  width="200px"
  • A deleted or truncated line that took the } with it.

How to fix

Add the missing }:

[text]{#my-id}

If you did not intend an attribute at all and want a literal { in your text, escape it as \{ — see Q-2-41 for the literal-brace rules.