The following classes could not be found: - android.support.design.widget.TextInputLayout

Question

This is Tutorial which i am following.

Please help me out from this error. Rebuild is not solving the problem.

Answer 1

Does your build.gradle file contain the line below?

compile 'com.android.support:design:22.2.0'

Answer 2

You must include support libraries (like the ones below), yet this is sometimes not sufficient.

compile ("com.android.support:support-v4:23.3.0")
compile ("com.android.support:appcompat-v7:23.3.0")
compile ("com.android.support:support-annotations:23.3.0")
compile ("com.android.support:recyclerview-v7:23.3.0")
compile ("com.android.support:design:23.3.0")

Examine your layout in design view, and click on Show Exception

This answer will help if you have the following problem:

You need to use a Theme.AppCompat theme (or descendant) with the design library.

In your Manifest file, include in your application declaration

android:theme="@style/Theme.AppCompat"

Rebuild and your problem should be solved.