Error: beep
    at [eval]:1:7
    at ContextifyScript.Script.runInThisContext (vm.js:50:33)
    at Object.runInThisContext (vm.js:139:38)
    at Object.<anonymous> ([eval]-wrapper:6:22)
    at Module._compile (module.js:635:30)
    at evalScript (bootstrap_node.js:462:27)
    at startup (bootstrap_node.js:163:9)
    at bootstrap_node.js:608:3
