android.view.InflateException: Error inflating

[NexoVentas-Android]

android.view.InflateException: Binary XML file line #17: Binary XML file line #17: Error inflating class com.mikhaellopez.circularimageview.CircularImageView
Caused by: android.view.InflateException: Binary XML file line #17: Error inflating class com.mikhaellopez.circularimageview.CircularImageView

while on line no 17 that`s the line of code app:civ_border_width="0.5dp"

<com.mikhaellopez.circularimageview.CircularImageView android:id="@+id/img" android:layout_width="50dp" android:layout_height="50dp" android:scaleType="centerCrop" android:src="@drawable/oil" app:civ_border_color="@color/light_gray" app:civ_border_width="0.5dp" />

color: = @android:color/darker_gray #aaa