V0601

DOM runtime · thrown by @voltdev/core (dom.ts)

A development build says:

:portal expects an element, a selector string, or nothing.

The parts in ‹guillemets› are filled in from your program when it happens.

In a production build

The sentence above is not in a production bundle — it would cost every application the bytes of every message whether or not it ever failed. What a production build keeps is the code, what failed, and the link to this page, so the same error there reads:

[volt] V0601 https://voltjs.dev/e/V0601

and carries code ('V0601') as a field, so a reporter can group by them without reading the text. See Errors for how an error is shaped, and the diagnostics option of the Vite plugin for a build that wants only the code.

Every error code