No resource identifier found for attribute '...' in package 'com.app....'

I've imported a project from Eclipse to Android studio. It utilizes a custom view:

xmlns:app="http://schemas.android.com/apk/res-auto"

I get errors in the lines below from activity_ro.xml file like:

"Error:(136) No resource identifier found for attribute 'pstsTabPaddingLeftRight' in package 'com.app.xxxx'"

app:pstsDividerColor="#00000000"
app:pstsIndicatorColor="#FF33B5E6"
app:pstsTabPaddingLeftRight="14dip"
app:pstsUnderlineColor="#FF33B5E6" />

I'm not sure if custom views are different for gradle or maybe I'm doing something wrong. Anyone have an idea?

I just changed:

xmlns:app="http://schemas.android.com/apk/res-auto" 

to:

xmlns:app="http://schemas.android.com/apk/lib/com.app.chasebank"

and it stopped generating the errors, com.app.chasebank is the name of the package. It should work according to this Stack Overflow : No resource identifier found for attribute 'adSize' in package 'com.google.example' main.xml

You can also use lib-auto

 xmlns:app="http://schemas.android.com/apk/lib-auto"