ERROR - The number of method references in a .dex file cannot exceed 64K.

In build.gradle ,

defaultConfig{

 multiDexEnabled true

 dependency
 configurations
{
        compile.exclude group: "org.apache.httpcomponents", module: "httpclient"
}

}

How to resolve org.apache.http does not exist

Error:(6, 23) error: package org.apache.http does not exist
Solution:

If you are using target sdk as 23 add below code in your build.gradle

android{
    compileSdkVersion 23
    buildToolsVersion '23.0.1'
    useLibrary  'org.apache.http.legacy'
}