I am using external libraries payu money sdk and linkedin-sdk, both uses volley libraries, which while compiling project gives duplicate entry of AuthFailureError.class
I had the similar issue while making build on Jenkins, weirdly it was working fine on my local machine. After adding below exclude it worked both on local machine and Jenkins.
android{
configurations {
all*.exclude group: 'com.android.volley'
}}
I have added configurations block to my app's build.gradle inside android section.
If it matter's Compile SDK version is 22 and Build Tools version is 25.0.0
This worked like a charm.