In Android Studio
Right click the App Folder
Open Module Settings (⌘↓)
Compile Sdk version (x)
Build Gradle
CompileSKDVersion
Doesn't change other version.
Build errors for theme, was showing 21 since it was originally built with this.
Change the version here:
dependencies {
compile 'com.android.support:appcompat-v7:19.0.0'
}
