How do I solve unsupported type imageview error? : I have two xml files. One in layout-land and the other in layout. However "http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" is marked red. I don't know if these are connected? Furthermore, as said I have the error unsupported type 'imageview'. Any help would be much appreciated and thanks in advance. 

p.s. I am a newbie at java programming, started this week. Another p.s. is I use android studio ide