TypeError: typescript_1.default.getDecorators is not a function

日期：2024-08-30 分类：1 人气：311

升级了eslint之后，运行代码检查命令`ng lint`报错：
```
 TypeError: typescript_1.default.getDecorators is not a function
    at preprocessComponentFile (E:\workspace\online\qikecai-backend\node_modules\@angular-eslint\eslint-plugin-template\dist\processors.js:62:58)
    at Linter._verifyWithProcessor (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\linter\linter.js:1887:22)
    at Linter._verifyWithConfigArray (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\linter\linter.js:1800:25)
    at Linter.verify (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\linter\linter.js:1437:65)
    at Linter.verifyAndFix (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\linter\linter.js:2068:29)
    at verifyText (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\cli-engine\cli-engine.js:254:48)
    at CLIEngine.executeOnFiles (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\cli-engine\cli-engine.js:834:28)
    at ESLint.lintFiles (E:\workspace\online\qikecai-backend\node_modules\eslint\lib\eslint\eslint.js:551:23)
    at E:\workspace\online\qikecai-backend\node_modules\@angular-eslint\builder\dist\lint.impl.js:44:36
preprocess: ERROR could not parse @Component() metadata E:\workspace\online\qikecai-backend\projects\full\src\app\pages\contents\content-creation\content-creation.component.ts
```

错误原因是typescript版本低了，现在的版本是4.4.6，升级版本之后错误消失
```
"typescript": "^5.5.4"
```

然而事情并没有那么简单，升级了typescript之后，项目运行不起来了，项目用的angular版本是13.4.0和typescript不兼容

```
The Angular Compiler requires TypeScript >=4.4.2 and <4.7.0 but 5.5.4 was found instead.
```
没办只能降级typescript，然后试一下降级eslint版本，目前的版本是`18.3.0`比较新，降级到`15.2.1`，然后再次运行`ng lint`

错误没有出现，终于又可以愉快的工作了，把开发依赖贴出来如下：
```
"devDependencies": {
    "@angular-devkit/build-angular": "^13.3.11",
    "@angular-eslint/builder": "^15.2.1",
    "@angular-eslint/eslint-plugin": "^15.2.1",
    "@angular-eslint/eslint-plugin-template": "^15.2.1",
    "@angular-eslint/schematics": "^15.2.1",
    "@angular-eslint/template-parser": "^15.2.1",
    "@angular/cli": "^13.3.11",
    "@angular/compiler-cli": "^13.4.0",
    "@angular/language-service": "^13.4.0",
    "@compodoc/compodoc": "^1.0.1",
    "@types/jasmine": "2.5.54",
    "@types/jasminewd2": "2.0.3",
    "@types/node": "^13.13.4",
    "@typescript-eslint/eslint-plugin": "^5.43.0",
    "@typescript-eslint/parser": "^5.43.0",
    "conventional-changelog-cli": "1.3.4",
    "eslint": "^8.57.0",
    "eslint-plugin-import": "^2.29.1",
    "eslint-plugin-jsdoc": "^48.0.2",
    "eslint-plugin-prefer-arrow": "^1.2.3",
    "husky": "0.13.3",
    "jasmine-core": "^5.2.0",
    "jasmine-spec-reporter": "4.1.1",
    "karma": "6.3.19",
    "karma-chrome-launcher": "3.1.1",
    "karma-cli": "2.0.0",
    "karma-coverage-istanbul-reporter": "3.0.3",
    "karma-jasmine": "5.0.0",
    "karma-jasmine-html-reporter": "1.7.0",
    "npm-run-all": "4.0.2",
    "protractor": "^7.0.0",
    "rimraf": "2.6.1",
    "stylelint": "^16.8.2",
    "stylelint-config-standard-scss": "^13.1.0",
    "ts-node": "3.2.2",
    "typescript": "^4.6.4"
  }
```

标签： eslint typescript

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TypeError: typescript_1.default.getDecorators is not a function

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