Build para dockerhub com jenkins

Efetuei os passos descritos e apresentou o erro relatado abaixo:

Successfully built 630b196d4c89

Tagging built image with leonardoquintania/django_todolist_image_build:latest
Docker Build Response : 630b196d4c89
Pushing [leonardoquintania/django_todolist_image_build:latest]
FATAL: com/google/common/io/BaseEncoding
java.lang.NoClassDefFoundError: com/google/common/io/BaseEncoding
    at com.github.dockerjava.core.exec.AbstrDockerCmdExec.registryAuth(AbstrDockerCmdExec.java:45)
    at com.github.dockerjava.core.exec.AbstrDockerCmdExec.resourceWithAuthConfig(AbstrDockerCmdExec.java:77)
    at com.github.dockerjava.core.exec.PushImageCmdExec.execute0(PushImageCmdExec.java:39)
    at com.github.dockerjava.core.exec.PushImageCmdExec.execute0(PushImageCmdExec.java:16)
    at com.github.dockerjava.core.exec.AbstrAsyncDockerCmdExec.execute(AbstrAsyncDockerCmdExec.java:56)
    at com.github.dockerjava.core.exec.AbstrAsyncDockerCmdExec.exec(AbstrAsyncDockerCmdExec.java:21)
    at com.github.dockerjava.core.exec.AbstrAsyncDockerCmdExec.exec(AbstrAsyncDockerCmdExec.java:12)
    at com.github.dockerjava.core.command.AbstrAsyncDockerCmd.exec(AbstrAsyncDockerCmd.java:21)
    at com.nirima.jenkins.plugins.docker.builder.DockerBuilderPublisher$Run.pushImages(DockerBuilderPublisher.java:433)
    at com.nirima.jenkins.plugins.docker.builder.DockerBuilderPublisher$Run.run(DockerBuilderPublisher.java:330)
    at com.nirima.jenkins.plugins.docker.builder.DockerBuilderPublisher.perform(DockerBuilderPublisher.java:463)
    at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:78)
    at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
    at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:741)
    at hudson.model.Build$BuildExecution.build(Build.java:206)
    at hudson.model.Build$BuildExecution.doRun(Build.java:163)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504)
    at hudson.model.Run.execute(Run.java:1856)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:97)
    at hudson.model.Executor.run(Executor.java:428)
Finished: FAILURE

Procurei na internet com o erro descrito FATAL: com/google/common/io/BaseEncoding

mas não achei nada pra ajudar.