求助一个 next.js 和 7890 端口相关的问题

我照着 b 站视频学习 next.js ，模仿着写一个 chatgpt 项目，链接是 https://www.bilibili.com/video/BV1tw411F7ua

但是我在对话框输入内容后报错。截图如下 前端界面： 控制台： 代码是这样的

import { sleep } from "@/common/util"; import client from "@/lib/openai"; import { MessageRequestBody } from "@/types/chat"; import { NextRequest } from "next/server"; export async function POST(request: NextRequest) { const { messages, model } = (await request.json()) as MessageRequestBody; const newMessages = messages.map((message) => { return { role: message.role, content: message.content, }; }); const encoder = new TextEncoder(); const stream = new ReadableStream({ async start(controller) { const events = await client.streamChatCompletions( model, [ { role: "system", content: "You are ChatGPT, a large language model trained by OpenAI. Follow the user's instructions carefully. Respond using markdown.", }, ...newMessages, ], { maxTokens: 1024, } ); for await (const event of events) { for (const choice of event.choices) { const delta = choice.delta?.content; if (delta) { controller.enqueue(encoder.encode(delta)); } } } controller.close(); }, }); return new Response(stream); } 

本地 7890 是我的 clash 代理软件的端口，但是我把 clash 禁用系统代理也没用，关了也没用，重启电脑也没用。已经找了好久也没找到原因。求一个大神帮助我，成功解决可以给个小红包，绝不食言。