resource error in android studio after update: No Resource Found

Question

After a recent update to Android Studio, we\'re having problems getting a project to compile that previously worked. At first we were getting the following error:

Answer 1

Method 1: It is showing.you did not install Api 23. So please install API 23.

Method 2:

Change the appcompat version in your build.gradle file back to 22.0.1 (or less).