Java vision on RaspberryPi

I am a programming mentor for team 4561 and I was going through the setup of a raspberrypi as a coprocessor for vision. I have been following the instructions here https://wpilib.screenstepslive.com/s/currentCS/m/vision/l/687863-off-board-vision-processing-in-java

My issue is I get a build failure with the following error. I have checked the repository and the location is correct. i would appreciate any input as to the cause of the build failure.

Starting a Gradle Daemon (subsequent builds will be faster)
:compileJava UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:jar UP-TO-DATE
:startScripts UP-TO-DATE
:downloadOpenCv FAILED

FAILURE: Build failed with an exception.

  • Where:
    Script ‘/home/pi/Downloads/VisionBuildSamples-1.0.0/Java/dependencies.gradle’ line: 58

  • What went wrong:
    Execution failed for task ‘:downloadOpenCv’.
    > Could not resolve all files for configuration ‘:detachedConfiguration1’.
    > Could not find opencv-jni-linux-arm-raspbian.jar (org.opencv:opencv-jni:3.2.0).
    Searched in the following locations:
    http://first.wpi.edu/FRC/roborio/maven/release/org/opencv/opencv-jni/3.2.0/opencv-jni-3.2.0-linux-arm-raspbian.jar

  • Try:
    Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 40.976 secs

There does not seem to be a Raspbian build for version 3.2.0, just 3.1.0.