GraphQL和TypegraphQL的版本不兼容

Question

Error: Looks like you use an incorrect version of the 'graphql' package: "16.0.1". Please ensure that you have installed a 
version that meets TypeGraphQL's requirement: "^15.3.0".

为什么? 16 > 15？我只是在学习两年前的一篇教程。我想，我会降级到老版本。

package.json

{
  "name": "server",
  "version": "0.0.1",
  "description": "Awesome project developed with TypeORM.",
  "devDependencies": {
    "@types/express": "^4.17.13",
    "@types/graphql": "^14.5.0",
    "@types/node": "^16.11.7",
    "ts-node": "10.4.0",
    "typescript": "4.4.4",
    "ts-node-dev": "1.1.8"
  },
  "dependencies": {
    "apollo-server-express": "^3.5.0",
    "express": "^4.17.1",
    "graphql": "16.0.1",
    "pg": "^8.4.0",
    "reflect-metadata": "^0.1.10",
    "type-graphql": "1.1.1",
    "typeorm": "0.2.40"
  },
  "scripts": {
    "start": "ts-node-dev --respawn src/index.ts",
    "typeorm": "node --require ts-node/register ./node_modules/typeorm/cli.js"
  }
}

Answer 1

目前，type-graphql仅支持主要版本为15且次要版本高于(或等于)为5的graphql。

^15.5.0：您可以包含不递增semver的第一个非零部分的所有内容。

有关更多信息，请参阅https://semver.npmjs.com

graphql的最新第15个主要版本是。

因此，您必须执行以下操作才能使一切正常工作：

卸载graphql的

npm uninstall graphql

15.7.2版

1. Install graphql

npm install graphql@15.7.2

现在一切都应该像预期的那样工作了。