deepseek-ai/deepseek-harness · error · Error

typert-loader: ${pkgName} exports "${TYPERT_HOST_EXPORT}" bu

Error message

typert-loader: ${pkgName} exports "${TYPERT_HOST_EXPORT}" but importing ${path} failed: ${String(cause)}

What it means

Error "typert-loader: ${pkgName} exports "${TYPERT_HOST_EXPORT}" but importing ${path} failed: ${String(cause)}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/typert/loader/src/index.ts:349

      return null
    }
    const pkg = JSON.parse(readFileSync(pkgPath, 'utf8')) as Record<string, unknown>
    const rel = typertExportOf(pkgName, pkg.exports)
    if (rel === undefined && configured.has(pkgName)) {
      throw new Error(`typert-loader: configured package "${pkgName}" does not export "${TYPERT_HOST_EXPORT}"`)
    }
    const resolved = rel === undefined ? null : join(dirname(pkgPath), rel)
    artifactPath.set(pkgName, resolved)
    return resolved
  }

  const loadManifest = (pkgName: string, path: string): Promise<TypertContribution> => {
    let loading = manifests.get(pkgName)
    if (loading === undefined) {
      loading = import(pathToFileURL(path).href).then(
        (mod: Record<string, unknown>) => validateTypertManifest(pkgName, mod.TYPERT),
        (cause: unknown) => {
          throw new Error(
            `typert-loader: ${pkgName} exports "${TYPERT_HOST_EXPORT}" but importing ${path} failed: ${String(cause)}`,
          )
        },
      )
      manifests.set(pkgName, loading)
    }
    return loading
  }

  const qualifies = (entryName: string): boolean => {
    if (configured.has(entryName)) return true
    for (const entry of ctx.loader.entries()) {
      if (entry.options.name === entryName && entry.fiber !== undefined && !entry.disabled) return true
    }
    return false
  }

  /** Reconcile one entry name against the live loader entries; a mount returns its async task. */

View on GitHub (pinned to b150a551b8)

Solutions

1. Fix the import failure cause reported in the message; check the exported path builds and loads under Node.

When it happens

Trigger: Thrown at packages/typert/loader/src/index.ts:349 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/d1a80fceedc637f9. Report an issue: GitHub.