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社区首页 >问答首页 >升级到Angular 12后出现错误: NGCC失败

问升级到Angular 12后出现错误: NGCC失败
EN

Stack Overflow用户
提问于 2021-11-03 08:13:52
回答 1查看 2.4K关注 0票数 2

当我要升级到Angular 12的时候，我正在做Angular 8项目，因为我完全来自React环境，直到我开始之前，我都没想到会有这么大的麻烦。我关注Angular Upgrade guide已经2天了，但一直收到以下错误：

代码语言：javascript
复制
⠋ Generating browser application bundles (phase: setup)...TypeError: Cannot read properties of undefined (reading 'text')
    at NodeObject.getText (C:\<project_name>\node_modules\typescript\lib\typescript.js:152697:31)
    at getRequiredModulePath (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\host\umd_host.js:519:99)
    at Object.getImportsOfUmdModule (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\host\umd_host.js:510:23)
    at UmdDependencyHost.extractImports (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\dependencies\umd_dependency_host.js:43:54)
    at UmdDependencyHost.DependencyHostBase.recursivelyCollectDependencies (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\dependencies\dependency_host.js:85:32)  
    at UmdDependencyHost.DependencyHostBase.collectDependencies (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\dependencies\dependency_host.js:38:22)
    at DependencyResolver.getEntryPointWithDependencies (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\dependencies\dependency_resolver.js:75:22)
    at EntryPointCollector.walkDirectoryForPackages (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\entry_point_finder\entry_point_collector.js:47:52)
    at EntryPointCollector.walkDirectoryForPackages (C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\entry_point_finder\entry_point_collector.js:75:103)
    at C:\<project_name>\node_modules\@angular\compiler-cli\ngcc\src\entry_point_finder\program_based_entry_point_finder.js:124:100
C:\<project_name>\node_modules\@ngtools\webpack\src\ngcc_processor.js:139
            throw new Error(errorMessage + `NGCC failed${errorMessage ? ', see above' : ''}.`);
            ^

Error: NGCC failed.
    at NgccProcessor.process (C:\<project_name>\node_modules\@ngtools\webpack\src\ngcc_processor.js:139:19)
    at <project_name>\node_modules\@ngtools\webpack\src\ivy\plugin.js:129:27
    at Hook.eval [as call] (eval at create (C:\<project_name>\node_modules\tapable\lib\HookCodeFactory.js:19:10), <anonymous>:20:1)
    at Hook.CALL_DELEGATE [as _call] (C:\<project_name>\node_modules\tapable\lib\Hook.js:14:14)
    at Compiler.newCompilation (C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Compiler.js:1043:30)
    at C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Compiler.js:1088:29
    at Hook.eval [as callAsync] (eval at create (C:\<project_name>\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:22:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (C:\<project_name>\node_modules\tapable\lib\Hook.js:18:14)
    at Compiler.compile (C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Compiler.js:1083:28)
    at C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Watching.js:200:19
    at Hook.eval [as callAsync] (eval at create (C:\<project_name>\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:22:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (C:\<project_name>\node_modules\tapable\lib\Hook.js:18:14)
    at run (C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Watching.js:154:33)
    at C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Watching.js:149:6
    at Compiler.readRecords (C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Compiler.js:920:11)
    at run (C:\<project_name>\node_modules\@angular-devkit\build-angular\node_modules\webpack\lib\Watching.js:145:26)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! <project_name>@0.0.0 start: `ng serve --proxy-config proxy.conf.json`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the <project_name>@0.0.0 start script.

package.json：

代码语言：javascript
复制
{
  "name": "aly",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve --proxy-config proxy.conf.json",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular-devkit/core": "12.2.12",
    "@angular-devkit/schematics": "12.2.12",
    "@angular/animations": "^12.2.12",
    "@angular/cdk": "^12.2.12",
    "@angular/common": "^12.2.12",
    "@angular/compiler": "^12.2.12",
    "@angular/core": "^12.2.12",
    "@angular/flex-layout": "^12.0.0-beta.35",
    "@angular/forms": "^12.2.12",
    "@angular/http": "^7.2.16",
    "@angular/material": "^12.2.12",
    "@angular/platform-browser": "^12.2.12",
    "@angular/platform-browser-dynamic": "^12.2.12",
    "@angular/router": "^12.2.12",
    "@auth0/angular-jwt": "^3.0.1",
    "@covalent/core": "2.1.1",
    "@ngx-translate/core": "^11.0.1",
    "@ngx-translate/http-loader": "^4.0.0",
    "@schematics/angular": "^8.3.29",
    "@types/file-saver": "^2.0.3",
    "@types/lodash": "^4.14.176",
    "@types/xml2js": "^0.4.9",
    "ag-grid-angular": "^22.1.1",
    "ag-grid-community": "^22.1.1",
    "color-string": "^1.6.0",
    "core-js": "^3.19.1",
    "file-saver": "^2.0.5",
    "font-awesome": "^4.7.0",
    "lodash.debounce": "^4.0.8",
    "ng2-dnd": "^5.0.2",
    "ngx-color-picker": "^8.2.0",
    "ngx-text-equality-validator": "^1.0.1",
    "ngx-toastr": "^11.3.3",
    "npm": "^6.14.15",
    "rxjs": "^6.6.7",
    "rxjs-compat": "^6.6.7",
    "stream": "0.0.2",
    "timers": "^0.1.1",
    "tslib": "^2.0.0",
    "xml2js": "^0.4.23",
    "zone.js": "~0.11.4"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~12.2.12",
    "@angular/cli": "^12.2.12",
    "@angular/compiler-cli": "^12.2.12",
    "@angular/language-service": "^12.2.12",
    "@types/jasmine": "~3.6.0",
    "@types/jasminewd2": "^2.0.10",
    "@types/node": "^12.20.36",
    "codelyzer": "^6.0.0",
    "jasmine-core": "~3.6.0",
    "jasmine-spec-reporter": "~5.0.0",
    "karma": "~6.3.7",
    "karma-chrome-launcher": "~3.1.0",
    "karma-cli": "~2.0.0",
    "karma-coverage-istanbul-reporter": "~3.0.2",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "^1.5.0",
    "protractor": "~7.0.0",
    "ts-node": "^8.10.2",
    "tslint": "~6.1.0",
    "typescript": "4.3.5",
    "uglifyjs-webpack-plugin": "^2.0.1",
    "webpack": "^4.46.0"
  }
}

tsconfig.json：

代码语言：javascript
复制
{
  "compileOnSave": false,
  "compilerOptions": {
    "downlevelIteration": true,
    "importHelpers": true,
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "target": "es2015",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2016",
      "dom"
    ],
    "module": "esnext",
    "baseUrl": "./"
  }
}

我已经用npm outdated检查了过期的包，并更新了所有的包。不幸的是，这里发布的大多数答案对我都不起作用，比如将enableIvy设置为true/false并删除node_modules/重新安装它们。任何额外的帮助或建议，我们将不胜感激。

angular
typescript
angular12
EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2021-11-22 08:01:00

正如misha130在评论中建议的那样，有(单个)库与导致错误的最新常春藤更改不一致。我很幸运，在项目中没有太多的依赖项，所以我检查了每一个依赖项，并将其卸载，直到应用程序启动时没有错误。

票数 2
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/69821521

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