ueberdosis/tiptap · error · Error

You should provide an instance of lowlight to use the code-b

Error message

You should provide an instance of lowlight to use the code-block-lowlight extension

What it means

Error "You should provide an instance of lowlight to use the code-block-lowlight extension" thrown in ueberdosis/tiptap.

Source

Thrown at packages/extension-code-block-lowlight/src/lowlight-plugin.ts:89

  return DecorationSet.create(doc, decorations)
}

// oxlint-disable-next-lineno-unsafe-function-type
function isFunction(param: any): param is Function {
  return typeof param === 'function'
}

export function LowlightPlugin({
  name,
  lowlight,
  defaultLanguage,
}: {
  name: string
  lowlight: any
  defaultLanguage: string | null | undefined
}) {
  if (!['highlight', 'highlightAuto', 'listLanguages'].every(api => isFunction(lowlight[api]))) {
    throw Error(
      'You should provide an instance of lowlight to use the code-block-lowlight extension',
    )
  }

  const lowlightPlugin: Plugin<any> = new Plugin({
    key: new PluginKey('lowlight'),

    state: {
      init: (_, { doc }) =>
        getDecorations({
          doc,
          name,
          lowlight,
          defaultLanguage,
        }),
      apply: (transaction, decorationSet, oldState, newState) => {
        const oldNodeName = oldState.selection.$head.parent.type.name
        const newNodeName = newState.selection.$head.parent.type.name

View on GitHub (pinned to 496d53afd7)

When it happens

Trigger: Thrown at packages/extension-code-block-lowlight/src/lowlight-plugin.ts:89 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ueberdosis/tiptap@496d53afd7 (2026-08-26). Data as JSON: /api/errors/5452517b1cef613f. Report an issue: GitHub.