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    Take a look at this blog post on how to set up Grid2 A user related (in the email group on the source) that using older selenium libs solves this exception.

Solutions on the web

via GitHub by skaldarnar
, 2 years ago
Vertex elements for chunk mesh segment #0 must not be null
via Atlassian JIRA by Seb Ruiz, 1 year ago
via Atlassian JIRA by Seb Ruiz, 1 year ago
java.lang.NullPointerException: authConfig was not specified	at	at com.github.dockerjava.core.command.AbstrAuthCfgDockerCmd.withAuthConfig(	at com.github.dockerjava.core.DockerClientImpl.pushImageCmd(	at org.jenkinsci.plugins.dockerbuildstep.cmd.PushImageCommand.execute(	at org.jenkinsci.plugins.dockerbuildstep.DockerBuilder.perform(	at hudson.tasks.BuildStepMonitor$1.perform(	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(	at hudson.model.Build$	at hudson.model.Build$BuildExecution.doRun(	at hudson.model.AbstractBuild$	at hudson.model.Run.execute(	at	at hudson.model.ResourceController.execute(	at