Failed to resolve Com.android.support:support-annotations 26.0.1

All current versions of Google libraries are stored in Google's Maven repository ( maven.google.com ), not in the old offline-capable support repositories.

In your project Build.gradle file, make sure your allprojects closures look like this:

allprojects {    repositories {        jcenter()        maven {            url "https://maven.google.com"        }    }}

If you are using androidstudio3.0+, this is the case:

allprojects {    repositories {        jcenter()        google()    }}

Failed to resolve Com.android.support:support-annotations 26.0.1