Canot find error who gives me "Can't bind to 'FormGroup' since it isn't a known property of...

Im having this error and i cannot find where it is im following a tutorial on youtube i tried searching on google ad i get alot of examples and i tried all from adding the FormsModule with CommonModule and ReactiveFormsModule, and also tried importing it in the component ut all to no avail.

here is the component code:

```import { Component, OnInit } from '@angular/core';
import { FormControl, FormGroup, Validators } from '@angular/forms';


@Component({
selector: 'app-create-post',
templateUrl: './create-post.component.html',
styleUrl: './create-post.component.css',
})
export class CreatePostComponent implements OnInit {
enteredTitle = '';
enteredContent = '';
forms: FormGroup | any;
private mode = 'create';
private postId: any;
public post: Post | any;

constructor(
public postService: PostServiceService,
public route: ActivatedRoute
) {}

ngOnInit() {
this.forms = new FormGroup({
title: new FormControl(null, {
validators: [Validators.required, Validators.minLength(3)],
}),
content: new FormControl(null, {
validators: [Validators.required],
}),
});

this.route.paramMap.subscribe((paramMap: ParamMap) => {
if (paramMap.has('postId')) {
this.mode = 'edit';
this.postId = paramMap.get('postId');
this.postService.getPosts(this.postId).subscribe((postData) => {
this.post = {
id: postData._id,
title: postData.title,
content: postData.content,
};
this.forms.setValue({
title: this.post.title,
content: this.post.content,
});
});
} else {
this.mode = 'create';
this.postId = null;
}
});
}

onAddPost() {
if (this.forms.invalid) {
return;
}
if (this.mode === 'create') {
this.postService.addPost(
this.forms.value.id,
this.forms.value.title,
this.forms.value.content
);
} else {
this.postService.updatePost(
this.postId,
this.forms.value.title,
this.forms.value.content
);
}
this.forms.reset();
}
}```

here is the html form:


```<mat-card>
<form [FormGroup]="forms" (submit)="onAddPost()">
<mat-form-field style="margin-top: 20px">
<mat-label>Titulo</mat-label>
<input matInput formControlName="title" />
<mat-error *ngIf="forms.get('title').invalid"
>Porfabor yena un titulo di minimo 20 karakter</mat-error
>
</mat-form-field>
<mat-form-field style="background-color: rgb(230, 227, 227)">
<mat-label>Contenido</mat-label>
<textarea matInput rows="10" formControlName="content"></textarea><br />
<mat-error *ngIf="forms.get('content').invalid"
>Porfabor yena bo contenido</mat-error
>
</mat-form-field>
<button
mat-flat-button
color="primary"
style="border-radius: 25px; width: 250px; margin: 20px 0 20px 3px"
type="submit"
>
Post
</button>
</form>
</mat-card>```

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