ironControl needed for paper-textarea?

[BorntraegerMarc]

So, I have a question, which confuses me a bit. I have in literally only one component this html:

        <form id="newTaskForm" [formGroup]="newTaskForm" (ngSubmit)="confirmAddTask()">
            <div class="komed-text-subtitle add-task-title">{{'task.addTask' | translate}}</div>
            <paper-input #titleInput label="{{'task.title' | translate}}" type="text" id="taskTitle" class="form-control" formControlName="taskTitle"
                name="taskTitle">
            </paper-input>
            <paper-textarea label="{{'task.description' | translate}}" id="description" class="form-control" formControlName="description"
                name="description" max-rows="3">
            </paper-textarea>
        </form>

And this TS:

        this.newTaskForm = this.fb.group({
            taskTitle: ['', [Validators.required, Validators.minLength(1)]],
            description: ['', [Validators.required, Validators.minLength(1)]]
        });

Generates this error:

ERROR Error: No value accessor for form control with name: 'description'
    at _throwError (forms.es5.js:1830)
    at setUpControl (forms.es5.js:1740)
    at FormGroupDirective.addControl (forms.es5.js:4711)
    at FormControlName._setUpControl (forms.es5.js:5299)
    at FormControlName.ngOnChanges (forms.es5.js:5217)
    at checkAndUpdateDirectiveInline (core.es5.js:10812)
    at checkAndUpdateNodeInline (core.es5.js:12238)
    at checkAndUpdateNode (core.es5.js:12177)
    at debugCheckAndUpdateNode (core.es5.js:12880)
    at debugCheckDirectivesFn (core.es5.js:12821)

If I now only add ironControl to only the paper-textarea:

            <paper-textarea label="{{'task.description' | translate}}" id="description" class="form-control" formControlName="description"
                name="description" max-rows="3" ironControl>
            </paper-textarea>

Everything works fine... Could you help me out to understand why only the paper-textarea needs the attribute?

[hotforfeature]

Because I forgot to add "paper-textarea" to the list of selectors for paper controls :(

Dead easy fix. I'll do it later today, and of course the workaround is to just add [ironControl] to your text areas.

Keep in mind that when the fix does hit your codebase, you'll need to remove the [ironControl] attribute or you will get a runtime error because the textarea will have two value accessors (Angular doesn't like that).