我已将我的 Angular 应用程序从 12 版本升级到 13 版本。我在单元测试运行期间开始遇到此错误。
Chrome Headless 94.0.4606.61 (Windows 10) AppComponent should create the app FAILED
TypeError: Cannot read properties of undefined (reading 'match')
at extractCommentsWithHash (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:9130:18)
at ShadowCss.shimCssText (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:8694:34)
at map (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:22402:26)
at Array.map (<anonymous>)
at compileStyles (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:22401:19)
at compileComponentFromMetadata (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:21948:13)
at CompilerFacadeImpl.compileComponentFromMeta (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:22570:21)
at CompilerFacadeImpl.compileComponent (http:###/_karma_webpack_/webpack:/node_modules/@angular/compiler/fesm2020/compiler.mjs:22560:21)
at Function.get (http:###/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2020/core.mjs:24583:47)
at getComponentDef (http:###/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2020/core.mjs:1119:16)
Failed: Cannot read properties of undefined (reading 'match')
我试过这个解决方案，但没有用。
manually remove package-lock.json
manually remove folder node_modules
npm install
你有什么解决办法吗？是否与Angular版本升级有关？
最佳答案
我在这个答案中找到了解决方案 https://stackoverflow.com/a/68797111/3387259
我在 tsconfig.json 中将 commonjs 更改为 es2020 并且还添加了 "moduleResolution": "node".
关于angular - 类型错误 : Cannot read properties of undefined (reading 'match' )，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/70066396/