关于#linux#的问题：请问这种报错该如何解决

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         Player(p)
                          Z Terminal SaE201304 Activities
                                                                            nanorcboEOubuntu
                     File Edit view seanc
                      anoreboteubuntu:s roslaunch robot navigation robot.slan Laser.taumcn
                                                                                                                                            sam网et
                    ods3cheetor
                      alwe errorinvalid master URI：http://:11311
                      e trecebeck for the exception waswrittento the Lomfle
                    hanoreboteubuntu:S rosLaunch robot navigation simulation robot.taunch
                     alme error：invalid master URI:http://:11311
                    Tme traceback for the exception was written to the Lagf
                     anoroboteubuntu：~s
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