我的package.json：

{
  "name": "frontend",
  "version": "0.1.0",
  "private": true,
  "engines": {
    "node": "14.x.x"
  },
  "dependencies": {
    "@ant-design/icons": "^4.7.0",
    "@codemirror/lang-python": "^0.19.2",
    "@testing-library/jest-dom": "^5.14.1",
    "@testing-library/react": "^11.2.7",
    "@testing-library/user-event": "^12.8.3",
    "@uiw/react-codemirror": "^4.1.0",
    "antd": "^4.16.13",
    "axios": "^0.24.0",
    "codemirror": "^5.63.3",
    "express": "^4.17.1",
    "pushstate-server": "^3.1.0",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-hook-form": "^7.18.0",
    "react-router-dom": "^5.3.0",
    "react-scripts": "4.0.3",
    "web-vitals": "^1.1.2"
  },
  "scripts": {
    "start": "node server.js",
    "start-dev": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

app.yaml：

env: standard
runtime: nodejs14

我的server.js文件，我通过它运行应用程序：

const express = require('express');
const path = require('path');
const app = express();

app.use(express.static(path.join(__dirname, 'build')));

app.get('/*', function (req, res) {
  res.sendFile(path.join(__dirname, 'build', 'index.html'));
});

app.listen(8080);

它在8080端口上启动express服务器，并为build目录提供服务。当我在localhost上运行它时，它工作得很好。但是当我使用gcloud app deploy命令在Google App Engine上部署它时，它打开应用程序并在控制台中写入以下内容：

Uncaught SyntaxError: Unexpected token '<' 2.cf168530.chunk.js:1
Uncaught SyntaxError: Unexpected token '<' main.3ec04766.chunk.js:1

Screenshot with the error。另外，如果有用的话，这是我的app的URL（请不要删除id查询，否则它会将您重定向到打开应用程序的前一页）。