Missing Newline at End of File

An input file does not end with a newline; one is added automatically.

Q-7-1 — Missing Newline at End of File

An input file does not end with a newline; one is added automatically.

What this means

POSIX text files end with a newline. Most editors enforce this, some tools rely on it, and several parsers behave subtly differently when it is missing. Quarto’s input handling tolerates the omission — it adds a newline to the in-memory buffer before parsing — but emits a warning so the discrepancy is visible.

The render still succeeds, and the file on disk is not modified.

Why this happens

Common causes:

• An editor that does not enforce a trailing newline (some Windows editors, older versions of Notepad).
• A file generated by a script that wrote content without the final \n.
• A file truncated mid-line — investigate this case separately, since a truncation might mean missing content.

How to fix

Add a newline at the end of the file. Most editors offer a setting to enforce this for new and edited files. A one-shot fix from the shell is printf '\n' >> file.qmd.