javascript - 导入自定义 NPM 库时无法在模块外使用导入语句

Question

我有一个我编写并上传到导出类的 NPM 的自定义模块

在 AWS-CDK 项目中，我正在安装该依赖项并尝试导入它，但在构建“cdk synth”期间出现以下错误

Cannot use import statement outside a module

这是来自 NPM 模块的包 JSON

  "name": "@organization/cdk-organization-fe",
  "version": "1.0.2",
  "description": "Frontend construct for apps",
  "main": "stack.ts",
  "publishConfig": {
    "access": "restricted"
  },
  "type":"module",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "tsc": "tsc"
  },
  "author": "me,
  "license": "ISC",
  "dependencies": {
    "@aws-cdk/aws-cloudfront": "^1.73.0",
    "@aws-cdk/aws-s3": "^1.73.0",
    "@aws-cdk/aws-s3-deployment": "^1.73.0",
    "@aws-cdk/aws-certificatemanager": "^1.73.0",
    "@aws-cdk/aws-logs": "^1.73.0",
    "@aws-cdk/aws-lambda": "^1.73.0",
    "@aws-cdk/aws-iam": "^1.73.0",
    "aws-cdk": "^1.73.0",
    "path": "^0.12.7",
    "typescript": "^4.0.5"
  }
}

然后是使用该库的 CDK 项目:

  "name": "showtix_fe",
  "version": "0.1.0",
  "bin": {
    "showtix_fe": "bin/showtix_fe.js"
  },
  "type": "module",
  "scripts": {
    "build": "tsc",
    "watch": "tsc -w",
    "test": "jest",
    "cdk": "cdk"
  },
  "devDependencies": {
    "@aws-cdk/assert": "1.73.0",
    "@types/jest": "^24.0.22",
    "@types/node": "10.17.5",
    "jest": "^24.9.0",
    "ts-jest": "^24.1.0",
    "aws-cdk": "^1.73.0",
    "ts-node": "^8.1.0",
    "typescript": "~3.7.2"
  },
  "dependencies": {
    "@aws-cdk/core": "^1.73.0",
    "@organization/cdk-organization-fe": "^1.0.2",
    "source-map-support": "^0.5.16"
  }
}

已尝试将 type:module 添加到包 JSON还尝试将其添加到 tsconfig 的 NPM 库中

    "target": "ES2017",                         
    "module": "ESNEXT",   

Answer 1

我相信您希望模块中的“main”: 指向“stack.js”而不是“.ts”文件。然后您需要确保在使用该模块之前运行“tsc”。还要添加 "types": "stack.d.ts"。