how do I fix this in android studio? I am new and learning it from udemy

Question

ERROR: /Users/guibrilramde/MyFirstUdemy/app/src/main/res/layout/activity_main.xml:19: AAPT: error: '@tools:sample/avatars' is incompatible with attribute src (attr) reference|color.

<ImageView
    android:id="@+id/imageExample"
    android:layout_width="300dp"
    android:layout_height="300dp"
    android:scaleType="fitCenter"
    android:src="@tools:sample/avatars"
    tools:srcCompat="@drawable/ab" />

Answer 1

Your two lines android:src="@tools:sample/avatars" and tools:srcCompat="@drawable/ab", which both determine which picture is shown, are contradictory. Delete both and write android:src="@drawable/ab" instead. The ab.png image must of course be in the res/drawable folder.