I am attempting to add a maven repository to my Android Studio project.
When I do a Gradle project sync everything is fine. However, whenever I try to build my apk, I get this error:

    Execution failed for task &#39;:app:javaPreCompileDebug&#39;.
    &gt; Annotation processors must be explicitly declared now.  The following dependencies on 
    the compile classpath are found to contain annotation processor.  Please add them to 
    the annotationProcessor configuration.
     - classindex-3.3.jar
    Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions
    .includeCompileClasspath = true to continue with previous behavior.  Note that this 
    option is deprecated and will be removed in the future.
    See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

The link included (https://developer.android.com/r/tools/annotation-processor-error-message.html) in the error 404s so its of no help. 

I have enabled annotation processing in the android studio settings, and added `includeCompileClasspath = true` to my Annotation Processor options. I have also tried adding `classindex`, `classindex-3.3` and `classindex-3.3.jar` to Processor FQ Name, but that did not help either.

these are the lines I have added to the default build.gradle under dependecies:

    dependencies {
        ...
        compile group: &#39;com.skadistats&#39;, name: &#39;clarity&#39;, version:&#39;2.1.1&#39;
        compile group: &#39;org.atteo.classindex&#39;, name: &#39;classindex&#39;, version:&#39;3.3&#39;
    }

Originally I just had the &quot;clarity&quot; one added, because that is the one I care about, but I added the &quot;classindex&quot; entry in the hopes that it would fix it. Removing &quot;clarity&quot; and keeping &quot;classindex&quot; gives me the exact same error. 

I&#39;m not all too familiar with gradle/maven so any help would be appreciated.

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