无法执行 npm install答案

【问题标题】：Can't execute npm install无法执行 npm install
【发布时间】：2022-02-08 00:25:32
【问题描述】：

当我执行 npm install 时，会显示此错误。对此有何建议？

PS C:\Users\alex\Downloads\team> npm install
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: frontend@0.0.0
npm ERR! Found: @angular/compiler@13.1.3
npm ERR! node_modules/@angular/compiler
npm ERR! @angular/compiler@"~13.1.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer @angular/compiler@"13.0.3" from @angular/compiler-cli@13.0.3
npm ERR! node_modules/@angular/compiler-cli
npm ERR! dev @angular/compiler-cli@"~13.0.0" from the root project
npm ERR! peer @angular/compiler-cli@"^13.0.0" from @angular-devkit/build-angular@13.2.2
npm ERR! node_modules/@angular-devkit/build-angular
npm ERR! dev @angular-devkit/build-angular@"^13.2.0" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! See C:\Users\ for a full report.



npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\

这是 Package.json 文件：

{
  "name": "frontend",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "watch": "ng build --watch --configuration development",
    "test": "ng test"
  },
  "private": true,
  "dependencies": {
    "@angular-devkit/build-angular": "^13.1.0",
    "@angular/cdk": "^13.1.0",
    "@angular/common": "~13.1.0",
    "@angular/compiler": "~13.1.0",
    "@angular/core": "~13.1.0",
    "@angular/forms": "~13.1.0",
    "@angular/platform-browser": "~13.1.0",
    "@angular/platform-browser-dynamic": "~13.1.0",
    "@angular/router": "~13.1.0",
    "@types/jquery": "^3.5.13",
    "bootstrap": "^5.1.3",
    "bootstrap4-toggle": "^3.6.1",
    "colors": "^1.4.0",
    "jquery": "^3.6.0",
    "rxjs": "~7.4.0",
    "tslib": "^2.3.0",
    "zone.js": "~0.11.4"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^13.2.0",
    "@angular/cli": "~13.0.4",
    "@angular/compiler-cli": "~13.0.0",
    "@types/jasmine": "~3.10.0",
    "@types/node": "^12.11.1",
    "jasmine-core": "~3.10.0",
    "karma": "~6.3.0",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage": "~2.0.3",
    "karma-coverage-istanbul-reporter": "^3.0.3",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "~1.7.0",
    "typescript": "~4.4.3"
  }
}

【问题讨论】：

删除package-lock.json文件和node_modules文件夹，然后执行npm install
做了但仍然有同样的错误
如果您也发布 package.json 的全部内容，这可能会有所帮助
您好，我已将 package.json 添加到 OP
似乎与 "@angular/compiler": "~13.1.0", 和 "@angular/compiler-cli": "~13.0.0", 之类的软件包有冲突，您可能应该决定是否希望角度内容全部为 13.1 或 13.0

标签： npm

【解决方案1】：

ERESOLVE 与 npm@7 和 npm@8 的问题很常见，因为它们比 npm@6 对对等依赖项更严格。通常，最简单的解决方法是将--legacy-peer-deps 标志传递给npm（例如npm i --legacy-peer-deps），或者使用npm@6。

“正确”的解决方案是找出您的哪些依赖项需要在package.json 中更新以避免对等依赖项冲突，但这有时对于未维护的依赖项是不可能的。在这种情况下，解决方案是找到或创建其他东西来摆脱未维护的依赖关系。

然而，十分之九，有人只想安装这些东西并希望它能正常工作，在这种情况下--legacy-peer-deps 会这样做。只需确保您具有良好的测试覆盖率，因为您使用的对等依赖版本与包指定的版本不同，因此某处可能无法正常工作。

要查看问题是否会影响您的生产应用，请发送npm install --production。如果它没有给你一个ERESOLVE 错误，那么问题就出在你的开发依赖中，这通常不是一个问题。

【讨论】：