V0301

Server markup · thrown by @voltdev/core (diagnostics.ts)

A development build says:

‹what› contains "</‹tag›", which ends the element rather than appearing inside it. Raw text cannot be escaped — an entity there is not decoded — so ‹fix›.

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] V0301 tag=‹tag› https://voltjs.dev/e/V0301

and carries code ('V0301') and detail ({ tag }) as fields, 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