Question

在Angular Project中，我正在将Angular 5与.Net MVC一起使用。对于Ts错误，模块级别错误，甚至对于HTML语法错误也显示相同的错误。它变得难以处理。请帮助我。

TypeError: exceptionHandler.handleError is not a function
at Object.next (core.js:5493)
at SafeSubscriber.schedulerFn [as _next] (core.js:4327`enter code here`)
at SafeSubscriber.__tryOrUnsub (Subscriber.js:239)
at SafeSubscriber.next (Subscriber.js:186)
at Subscriber._next (Subscriber.js:126)
at Subscriber.next (Subscriber.js:90)
at EventEmitter.Subject.next (Subject.js:55)
at EventEmitter.emit (core.js:4307)
at core.js:4767
at ZoneDelegate.invoke (zone.js:388)

Answer 1

检查是否像您的文章https://medium.com/@amcdnl/global-error-handling-with-angular2-6b992bdfb59c中那样在angular项目中重新分配了全局异常处理程序。修复或关闭它。在项目中搜索“ handleError”。
对JS级别https://www.tutorialspoint.com/How-to-write-a-global-error-handler-in-JavaScript

Answer 2

似乎您的代码中具有自定义异常处理程序。 1.如果确实不需要，请从代码中删除。

import { ErrorHandler } from '@angular/core';

从项目中删除此导入和相关代码。

如果需要，请再次检查异常处理程序类

import { ErrorHandler } from '@angular/core';

export default class MyErrorHandler implements ErrorHandler {
    constructor() { 

        super(true);
    }

    handleError(error) {

        super.handleError(error); 
    }
}






import { NgModule, ErrorHandler } from '@angular/core';
import MyErrorHandler from './my-error-handler';

@NgModule({
        imports: [ BrowserModule ],
        declarations: [ App ],
        providers: [ { provide: ErrorHandler, useClass: MyErrorHandler } ]
        bootstrap: [ App ]
})
export class AppModule {}

在Html和TS上的Angular For Every Error和Module Error中，它显示相同的错误详细信息

2 个答案: