Angular-cli: ng build results in error TS2554: Expected 0 arguments, but got 1.

[AnassL]

• [x] bug report

After upgraded to Angular CLI 1.5.0
ng build command resulted in the follwing error:
ERROR in app/app-error.handler.ts error TS2554: Expected 0 arguments, but got 1.

Versions.

Angular CLI: 1.5.0
Node: 8.9.0
OS: win32 x64
Angular: 5.0.1
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, platform-server, router
@angular/cdk: 5.0.0-rc0
@angular/cli: 1.5.0
@angular/material: 5.0.0-rc0
@angular-devkit/ build-optimizer: 0.0.33
@angular-devkit/ core: 0.0.20
@angular-devkit/ schematics: 0.0.35
@ngtools/ json-schema: 1.1.0
@ngtools/ webpack: 1.8.0
@schematics/ angular: 0.1.3
typescript: 2.6.1
webpack-hot-middleware: 2.19.1
webpack-merge: 4.1.0
webpack: 3.6.0

When checking the app-error.handler.ts , the line:

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

has "Injectable" and "Error handler" underlined with the errors:

[ts] Module '"c:/...../node_modules/@angular/core/core"' has no exported member 'Injectable'.

[ts] Module '"c:/...../node_modules/@angular/core/core"' has no exported member 'ErrorHandler'.

Update:

After a machine reboot, the words "Injectable" and "Error handler" were not underlined but this time it was the argument "super(true)" in the constructor below:

    constructor() {
        super(true);
    }:

Here the error is:
constructor ErrorHandler(): ErrorHandler

[clydin]

This doesn’t appear to be related to the CLI. The constructor being called doesn’t take an argument. Remove the ‘true’ from the super call.

[AnassL]

Removing the ‘true’ from the super call releases the error, but I wonder why it is supplied originally with 'true' if I have to remove it.

[clydin]

That file doesn't exist in a newly generated project.
The constructor parameter was deprecated in Angular 4 and removed in Angular 5.

[hansl]

As @clydin pointed out, the constructor parameter was removed in Angular 5. I'm closing this as solved/answered.

[DeepzSandra]

Hi ,
how to solve this problem any body help me.
using Angular2
Error TS2554: Expected 3 arguments, but got 0.

[durjoy28]

error TS2554: Expected 2 arguments, but got 1.

Here sign(myForm){
if(myForm.valid){
this.af.auth.createUserWithEmailAndPassword({ //here is the problem
email:this.email,
password:this.password
}).then(
(success)=> {
console.log(success);
this.router.navigate(['/login'])
}).catch(
(err)=> {
console.log(err);
this.error=err;
})
}
}

[eternalsayed]

@durjoy28 : It so appears that your createUserWithEmailAndPassword function is expecting two parameters whereas you're sending an object, which is 01 parameter. Try sending the email and password as individual parameters, maybe?

[vishnuBoppani]

error TS2554: Expected 2 arguments, but got 1.

onFormSubmit(form:NgForm) {
this.api.updateBook(this.id, form)
.subscribe(res => {
let id = res['_id'];
this.router.navigate(['/book-details', id]);
}, (err) => {
console.log(err);
}
);
}

[armandohuarcaya]

ERROR in src\app\modules\configuration\external-system\containers\external-system-home.component.ts.ExternalSystemHomeComponent.html(2,33): : Expected 0 arguments, but got 1.

[fflores-origin]

ERROR in src\app\modules\configuration\external-system\containers\external-system-home.component.ts.ExternalSystemHomeComponent.html(2,33): : Expected 0 arguments, but got 1.

When this happened to me, I found that it was a function I was calling from the html with a parameter, but in the ts file no parameters were expected.

Example:
HTML FILE
<app-filters (OnClear)="this.clearFilter($event)">

TS FILE
clearFilter() {....}

You can see that in your project says that is on the line 2, check if is the same error

[durjoy28]

My problem is solved.

On Wed, Feb 27, 2019 at 2:25 AM Francisco Andres Flores Fanelli <
[email protected]> wrote:

ERROR in
src\app\modules\configuration\external-system\containers\external-system-home.component.ts.ExternalSystemHomeComponent.html(2,33):
: Expected 0 arguments, but got 1.

When this happened to me, I found that it was a function I was calling
from the html with a parameter, but in the ts file no parameters were
expected.

Example:
HTML FILE

TS FILE
clearFilter() {....}

You can see angular says that is on the line 2

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