Error: The module 'MyMaterialModule' encountered an unexpected directive 'angular-material'. To resolve this issue for angular 5, please include the @NgModule annotation

I am encountering this issue

Found an Error: Module 'MaterialModule' is importing the directive 'MatPaginator' unexpectedly. Make sure to include @NgModule annotation.

This is the material module I am using

import { NgModule, ViewChild } from '@angular/core';
import { CommonModule } from '@angular/common';
import { MatPaginator, MatSort, MatTableDataSource,MatButtonModule, 
MatTableModule } from '@angular/material';

@NgModule({
    imports: [MatButtonModule,MatTableModule,
              MatPaginator, MatSort, 
              MatTableDataSource],
    exports: [MatButtonModule,MatTableModule,MatPaginator, MatSort, 
             MatTableDataSource],
})
export class MaterialModule { }

This is my app.module file

...
import { MaterialModule } from './material.module';


@NgModule({
  declarations: [
     ...

  ],
  imports: [
    ...
    MaterialModule,
    ...
  ],
  providers: [...],
  bootstrap: [ AppComponent]
})
export class AppModule { }

Here is the code snippet for my view

<div class="example-container mat-elevation-z8">
   <div class="example-header">
     <mat-form-field>
      <input matInput (keyup)="applyFilter($event.target.value)" 
    placeholder="Filter">
    </mat-form-field>
  </div>

<!-- Name Column -->
<ng-container matColumnDef="name">
  <mat-header-cell *matHeaderCellDef> Name </mat-header-cell>
  <mat-cell *matCellDef="let user"> {{user.name}} </mat-cell>
</ng-container>

<!-- Weight Column -->
<ng-container matColumnDef="email">
  <mat-header-cell *matHeaderCellDef> email </mat-header-cell>
  <mat-cell *matCellDef="let user"> {{user.email}} </mat-cell>
</ng-container>

<!-- Color Column -->
<ng-container matColumnDef="phone">
  <mat-header-cell *matHeaderCellDef> phone </mat-header-cell>
  <mat-cell *matCellDef="let user"> {{user.phone}} </mat-cell>
</ng-container>

<ng-container matColumnDef="company">
  <mat-header-cell *matHeaderCellDef> company </mat-header-cell>
  <mat-cell *matCellDef="let user"> {{user.company.name}} </mat-cell>
</ng-container>

<mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
<mat-row *matRowDef="let row; columns: displayedColumns;"></mat-row>

I found this information in Angular Material documentation. How can I resolve this error?

Answer №1

Encountering the identical issue, I resolved it by adding the MatPaginatorModule to the imports array in my @NgModule. This solution successfully fixed the problem for me and hopefully will work for you as well.

Answer №2

Instead of importing the MatPaginator module, you should import the MatPaginatorModule module. This change fixed my issue.

For example:

// material.module.ts

import { NgModule } from '@angular/core';
import { MatTableModule } from '@angular/material/table';
import { MatPaginatorModule } from '@angular/material/paginator';

@NgModule({
    imports: [
        MatTableModule,
        MatPaginatorModule
    ],
    exports: [
        MatTableModule,
        MatPaginatorModule
    ]
})

export class MaterialModule { }

Answer №3

Make sure to include the MatPaginator Module instead of just importing MatPaginator. Update this in your MaterialModule and you'll be good to go.

Greetings!

Answer №4

const MaterialModules = [ MatButtonModule, MatToolbarModule, MatIconModule, MatDialogModule, MatCardModule, MatPaginatorModule ]

Here, I have imported and exported general modules from Material but not specific individual components or buttons.

I recommend importing MatPaginatorModule as it will provide all the necessary directives and components for your use case.

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