npm 启动我的 Angular2 项目时出现重复的标识符导出错误

Posted 2023-03-07

【中文标题】npm 启动我的 Angular2 项目时出现重复的标识符导出错误

【英文标题】：Duplicate identifier export error while npm start my Angular2 Project

【发布时间】：2017-08-17 10:23:43

【问题描述】：

当我通过 npm start 命令运行我的 Angular2 项目时，我得到 Duplicate identifier export " 错误。我搜索了很多但找不到我的问题的确切解决方案。你可以找到 package.json、typings.json 和 tsconfig。 json 下面。

问候 阿尔珀

package.json


"name": "Angular2SampleProject2",
"version": "1.0.0",
"scripts": 
 "start": "tsc && concurrently \"tsc -w\" \"lite-server\" ",
 "e2e": "tsc && concurrently \"http-server -s\" \"protractor 
 protractor.config.js\" --kill-others --success first",
 "lint": "tslint ./app/**/*.ts -t verbose",
 "lite": "lite-server",
 "pree2e": "webdriver-manager update",
 "test": "tsc && concurrently \"tsc -w\" \"karma start karma.conf.js\"",
 "test-once": "tsc && karma start karma.conf.js --single-run",
"tsc": "tsc",
"tsc:w": "tsc -w"  ,
"license": "ISC",
"dependencies": 
"@angular/common": "2.4.0",
"@angular/compiler": "2.4.0",
"@angular/core": "2.4.0",
"@angular/forms": "2.4.0",
"@angular/http": "2.4.0",
"@angular/platform-browser": "2.4.0",
"@angular/platform-browser-dynamic": "2.4.0",
"@angular/router": "3.4.0",
"angular-in-memory-web-api": "0.2.2",
"systemjs": "0.19.40",
"core-js": "2.4.1",
"reflect-metadata": "0.1.8",
"rxjs": "5.0.1",
"zone.js": "0.7.4"
  ,
 "devDependencies": 
  "concurrently": "3.1.0",
  "lite-server": "2.2.2",
  "typescript": "2.0.10",

 "canonical-path": "0.0.2",
 "http-server": "^0.9.0",
 "tslint": "^3.15.1",
 "lodash": "^4.16.4",
 "jasmine-core": "~2.4.1",
 "karma": "^1.3.0",
"karma-chrome-launcher": "^2.0.0",
"karma-cli": "^1.0.1",
"karma-jasmine": "^1.0.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~4.0.14",
"rimraf": "^2.5.4",

"@types/node": "6.0.46",
"@types/jasmine": "2.5.36"
 
 

tsconfig.json

"compilerOptions": 
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": [ "es2015", "dom" ],
"noImplicitAny": true,
"suppressImplicitAnyIndexErrors": true

错误信息：

  Types of property 'pause' are incompatible.
  Type '() => void' is not assignable to type '() => ReadWriteStream'.
    Type 'void' is not assignable to type 'ReadWriteStream'.
  typings/globals/node/index.d.ts(2301,5): error TS2300: Duplicate 
  identifier 'export='.typings/globals/node/index.d.ts(2323,18): error 
TS2300: Duplicate    identifier 'Domain'.
npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\ProgramFiles\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
 npm ERR! node v4.4.4
 npm ERR! npm  v2.15.1
 npm ERR! code ELIFECYCLE
 npm ERR! Angular2SampleProject2@1.0.0 start: `tsc && concurrently "tsc -w""lite
-server" `npm ERR! Exit status 2
 npm ERR!
 npm ERR! Failed at the Angular2SampleProject2@1.0.0 start script 'tsc && 
 concurrently "tsc -w" "lite-server" '.
 npm ERR! This is most likely a problem with the Angular2SampleProject2 

包，npm 错误！不是 npm 本身。 npm 错误！告诉作者这在您的系统上失败： npm 错误！ tsc && 同时 “tsc -w” “lite-server” npm 错误！您可以获得有关如何为此项目打开问题的信息 与：npm 错误！ npm 错误 Angular2SampleProject2 npm 错误！或者，如果这不可用，您可以通过以下方式获取他们的信息： npm 错误！ npm 错误！ npm 所有者 ls Angular2SampleProject2 npm 错误！上面可能还有额外的日志输出。

npm 错误！请在任何支持请求中包含以下文件： npm 错误！ C:\Users\kopuz\workspace\Angular2SampleProject2\npm-debug.log

【问题讨论】：

好像很模糊。我们需要更多细节来提供帮助。你能提供完整的错误信息吗？

您是否尝试将"exclude": ["node_modules"] 添加到您的tsconfig.json？

你好 Diullei。我在我的问题中添加了错误消息。您可以在消息中看到它。应该有一些我错过的简单事情。

太好了，我还不清楚，但是您提供的详细信息越多，您获得帮助的机会就越多。看看@Saravana的这个问题

你好萨拉瓦娜。它说未知的编译器选项“排除”。我想我也必须编辑我的 package.json

【参考方案1】：

几天前我也遇到了同样的问题。 我通过以下方式修复了相同的问题：

将我的节点版本更新为7.7.2 更新到 package.json 中的 "@angular/compiler": "~2.4.9", "@angular/core": "~2.4.9"

这是我的 tsconfig 现在的样子：

  "compilerOptions": 
    "target": "es6",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "lib": [
      "es6",
      "dom"
    ]
  ,
  "typeRoots": [
    "node_modules/@types"
  ],
  "types": [
    "core-js",
    "hammerjs"
  ],
  "exclude": [
    "node_modules"
  ]