deepseek-ai/deepseek-harness · error · TypeGraphRenderError

alias ${id} has no type node

Error message

alias ${id} has no type node

What it means

Error "alias ${id} has no type node" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/typert/generator/src/renderer.ts:221

      default: return assertNever(member)
    }
  }

  /**
   * Render a named declaration without JSDoc.
   * @param id - declaration symbol id.
   * @returns exported TypeScript declaration text.
   */
  renderDeclaration(id: SymbolId): string {
    const declaration = this.declaration(id)
    const parameters = this.renderTypeParameters(declaration.typeParameters)
    if (declaration.kind === 'enum') {
      const members = declaration.enumMembers?.map(member =>
        `    ${renderPropertyName(member.name)}${member.initializer === undefined ? '' : ` = ${member.initializer}`},`) ?? []
      return [`export enum ${declaration.name} {`, ...members, '}'].join('\n')
    }
    if (declaration.kind === 'alias') {
      if (declaration.type === undefined) throw new TypeGraphRenderError(`alias ${id} has no type node`)
      return `export type ${declaration.name}${parameters} = ${this.renderType(declaration.type)};`
    }
    const extendsTypes = declaration.extends.map(type => this.renderType(type))
    const implementsTypes = declaration.implements.map(type => this.renderType(type))
    const heritage = [
      extendsTypes.length === 0 ? '' : ` extends ${extendsTypes.join(', ')}`,
      implementsTypes.length === 0 ? '' : ` implements ${implementsTypes.join(', ')}`,
    ].join('')
    const prefix = declaration.kind === 'class' && declaration.abstract ? 'abstract ' : ''
    const members = declaration.members.map(member => `    ${this.renderMember(member)};`)
    return [`export ${prefix}${declaration.kind} ${declaration.name}${parameters}${heritage} {`, ...members, '}'].join('\n')
  }

  /**
   * Find the transitive declaration closure referenced by members.
   * @param memberIds - business-API member ids.
   * @returns declarations in graph order, excluding no roots implicitly.
   */

View on GitHub (pinned to b150a551b8)

Solutions

1. Fix the alias so it resolves to a type node; regenerate the type graph.

When it happens

Trigger: Thrown at packages/typert/generator/src/renderer.ts:221 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/0e6c50d95c805646. Report an issue: GitHub.