No resource identifier found for attribute 'layout_behavior' in package

Question

My application worked fine until I tried to add a library to it. After I added the library, Android Studio gives me the following error:

Error:(26) No

Answer 1

I have this problem. and i resolved my problem with tow steps. 1- Download last version of AndroidSupportLibrary package and AndroidSupportRepository package(or upgarad them to the newest version) in SDKTools of android sdk manager . 2- Change support depenedencies ind build.gradle fiel to

compile 'com.android.support:appcompat-v7:25.+'
compile 'com.android.support:support-v4:25.+'
compile 'com.android.support:recyclerview-v7:25.+'
compile 'com.android.support:design:25.+'