Cannot find module react が解決できない!!!

heroku にblitz.jsで作ったアプリをデプロイする際にエラーが出ました。
heroku logs でエラー内容を確認してみると、package.JSONのdependenciesにはreactが載っているにもかかわらず、「The module 'react' was not found. Blitz.js requires that you include it in 'dependencies' of your 'package.json'. To add it, run 'npm install react'」と表示されます。

<試したこと>
一度reactをuninstall してもう一度install したが変化がなかった。

json
1{
2  "name": "blitz",
3  "version": "1.0.0",
4  "scripts": {
5    "dev": "blitz dev",
6    "build": "blitz build",
7    "start": "blitz start",
8    "start:production": "blitz start --port $PORT",
9    "studio": "blitz prisma studio",
10    "lint": "eslint --ignore-path .gitignore --ext .js,.ts,.tsx .",
11    "test": "jest",
12    "test:watch": "jest --watch"
13  },
14  "prisma": {
15    "schema": "db/schema.prisma"
16  },
17  "prettier": {
18    "semi": false,
19    "printWidth": 100
20  },
21  "lint-staged": {
22    "*.{js,ts,tsx}": [
23      "eslint --fix"
24    ]
25  },
26  "dependencies": {
27    "@fortawesome/fontawesome-svg-core": "1.2.35",
28    "@fortawesome/free-solid-svg-icons": "5.15.3",
29    "@fortawesome/react-fontawesome": "0.1.14",
30    "@prisma/client": "2.26.0",
31    "@tailwindcss/line-clamp": "0.2.1",
32    "axios": "0.21.1",
33    "blitz": "0.38.2",
34    "final-form": "4.20.2",
35    "passport-github": "1.1.0",
36    "passport-google-oauth2": "0.2.0",
37    "pg": "8.6.0",
38    "react": "17.0.2",
39    "react-dom": "17.0.2",
40    "react-final-form": "6.5.3",
41    "react-intersection-observer": "8.32.0",
42    "react-loading": "2.0.3",
43    "react-transition-group": "4.4.2",
44    "recoil": "0.3.1",
45    "xmljson": "0.2.0",
46    "zod": "3.3.4"
47  },
48  "devDependencies": {
49    "@types/preview-email": "2.0.0",
50    "@types/react": "17.0.13",
51    "autoprefixer": "10.2.6",
52    "eslint": "7.30.0",
53    "husky": "6.0.0",
54    "lint-staged": "10.5.4",
55    "prettier": "2.3.2",
56    "prettier-plugin-prisma": "0.13.2",
57    "pretty-quick": "3.1.1",
58    "preview-email": "3.0.4",
59    "prisma": "2.26.0",
60    "tailwindcss": "2.2.4",
61    "typescript": "~4.3"
62  },
63  "private": true
64}