Unable to run Selenium tests on CentOS through Xvfb

I'm running Selenium tests on `CentOS 7` machine through Jenkins pipeline hence using `Xvfb`. When use `screen` argument with any valid value like following - wrap([$class: 'Xvfb', autoDisplayName: true, screen: '1440x800x8']) { } It results into following error - [testn

Unable to run Selenium tests on CentOS through Xvfb

I'm running Selenium tests on `CentOS 7` machine through Jenkins pipeline hence using `Xvfb`. When use `screen` argument with any valid value like following - wrap([$class: 'Xvfb', autoDisplayName: true, screen: '1440x800x8']) { } It results into following error - [testn