PLVINS运行报错，如何解决？

运行PLVINS突然开始报错，不会解决这个问题

roslaunch plvins_estimator plvins-show-linepoint.launch

ERROR: cannot launch node of type [feature_tracker/LineFeature_tracker]: Cannot locate node of type [LineFeature_tracker] in package [feature_tracker]. Make sure file exists in package path and permission is set to executable (chmod +x)

求解

你得版本是多少版本