Ich versuche EingangFehler, wenn ich versuche Eingang zur Validierung in Angular2
<md-input-container class="name-input">
<input type="text" mdInput [(ngModel)]="tileName" #tileNameInput="ngModel"
id="tileNameInput" name="tileNameInput"
required placeholder="{{ 'Name' | translate }}"/>
<md-error *ngIf="v.errors.required">Tile Name is required</md-error>
</md-input-container>
zu validieren und ich bekam Fehler:
ERROR TypeError: Cannot read property 'errors' of undefined at Object.eval [as updateDirectives] (HeaderComponent.html:104) at Object.debugUpdateDirectives [as updateDirectives] (core.es5.js:12784) at checkAndUpdateView (core.es5.js:12122) at callViewAction (core.es5.js:12485) at execEmbeddedViewsAction (core.es5.js:12443) at checkAndUpdateView (core.es5.js:12123) at callViewAction (core.es5.js:12485) at execComponentViewsAction (core.es5.js:12417) at checkAndUpdateView (core.es5.js:12128) at callViewAction (core.es5.js:12485)
Kann jemand hilft mir?