Fastify version conflict

[mdalaminbey]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

FastifyError: fastify-plugin: fastify-accepts - expected '3.x' fastify version, '4.2.1' is installed at Object.checkVersion (D:\doatkolom\fix-npm\node_modules\fastify\lib\pluginUtils.js:118:11) at Object.registerPlugin (D:\doatkolom\fix-npm\node_modules\fastify\lib\pluginUtils.js:133:16) at Boot.override (D:\doatkolom\fix-npm\node_modules\fastify\lib\pluginOverride.js:28:57) at Plugin.exec (D:\doatkolom\fix-npm\node_modules\avvio\plugin.js:79:33) at Boot.loadPlugin (D:\doatkolom\fix-npm\node_modules\avvio\plugin.js:272:10) at processTicksAndRejections (node:internal/process/task_queues:83:21)

Steps to reproduce

No response

Expected behavior

How to fix this issue?

Package

• I don't know. Or some 3rd-party package
• @nestjs/common
• @nestjs/core
• @nestjs/microservices
• @nestjs/platform-express
• @nestjs/platform-fastify
• @nestjs/platform-socket.io
• @nestjs/platform-ws
• @nestjs/testing
• @nestjs/websockets
• Other (see below)

Other package

No response

NestJS version

No response

Packages versions

{
  "name": "nestjs",
  "version": "0.0.1",
  "description": "",
  "author": "",
  "private": true,
  "license": "UNLICENSED",
  "scripts": {
    "prebuild": "rimraf dist",
    "build": "nest build",
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "start": "nest start",
    "start:dev": "nest start --watch",
    "start:debug": "nest start --debug --watch",
    "start:prod": "node dist/main",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json"
  },
  "dependencies": {
    "@nestjs/apollo": "^10.0.17",
    "@nestjs/common": "^9.0.0",
    "@nestjs/core": "^9.0.0",
    "@nestjs/graphql": "^10.0.18",
    "@nestjs/mapped-types": "*",
    "@nestjs/platform-fastify": "^9.0.4",
    "apollo-server-fastify": "^3.10.0",
    "graphql": "^16.5.0",
    "reflect-metadata": "^0.1.13",
    "rimraf": "^3.0.2",
    "rxjs": "^7.2.0"
  },
  "devDependencies": {
    "@nestjs/cli": "^9.0.0",
    "@nestjs/schematics": "^9.0.0",
    "@nestjs/testing": "^9.0.0",
    "@types/express": "^4.17.13",
    "@types/jest": "28.1.4",
    "@types/node": "^16.0.0",
    "@types/supertest": "^2.0.11",
    "@typescript-eslint/eslint-plugin": "^5.0.0",
    "@typescript-eslint/parser": "^5.0.0",
    "eslint": "^8.0.1",
    "eslint-config-prettier": "^8.3.0",
    "eslint-plugin-prettier": "^4.0.0",
    "jest": "28.1.2",
    "prettier": "^2.3.2",
    "source-map-support": "^0.5.20",
    "supertest": "^6.1.3",
    "ts-jest": "28.0.5",
    "ts-loader": "^9.2.3",
    "ts-node": "^10.0.0",
    "tsconfig-paths": "4.0.0",
    "typescript": "^4.3.5"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".*\\.spec\\.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "collectCoverageFrom": [
      "**/*.(t|j)s"
    ],
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  }
}

Node.js version

No response

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

No response

[jmcdo29]

Nest v9 uses fastify v4. The fastify-accepts package you're using only supports up to fastify v3. Replace it with @fastify/accepts and you'll be good to go

[micalevisk]

@mdalaminbey https://docs.nestjs.com/migration-guide#fastify

[jmcdo29]

Also, I just noticed you have apollo-sever-fastify, that only supports fastify v3, so it may be the root cause of your problem. Just an FYI

[mdalaminbey]

not fixed.

[mdalaminbey]

@jmcdo29 @micalevisk

[micalevisk]

run npm ls fastify-accepts

[jmcdo29]

Also, I just noticed you have apollo-sever-fastify, that only supports fastify v3, so it may be the root cause of your problem. Just an FYI

This is most likely the issue here. Fastify v4 cannot be used with apollo-server-fastify v3. They are not compatible. This is not related to Nest, it's a problem with the asf package. More on the linked issue

apollographql/apollo-server#6576

[kamilmysliwiec]

nestjs/graphql#2307