Redactor widget did not run well

[nhatnhat1090]

I could not see any plugin attached successfully in redactor widget.
I had set the following code line:

field($model, 'text')->widget(Redactor::className(),[ 'options' => [ 'minHeight' => 400, 'imageUpload' => Url::to(['/admin/redactor/upload', 'dir' => 'article'], true), 'fileUpload' => Url::to(['/admin/redactor/upload', 'dir' => 'article'], true), 'plugins' => ['fullscreen', 'fontfamily', 'fontcolor', 'fontsize'] ] ]) ?>

none of the above plugins run, please help