rqt_bhand error has to do with plugin.xml file !

[MohamadHalwani]

Hello all,

I'm having an issue when I try to run rqt_bhand using the folollowing command
rosrun rqt_bhand rqt_bhand

This is the error >>

[ERROR] [1613650608.076749231]: Skipped loading plugin with error: XML Document '/home/ubuntu/3DGripper_ws/src/Barrett_hand/barrett_hand/rqt_bhand/plugin.xml' has no Root Element. This likely means the XML is malformed or missing..
RosPluginProvider._parse_plugin_xml() plugin file "/home/ubuntu/3DGripper_ws/src/Barrett_hand/barrett_hand/rqt_bhand/plugin.xml" in package "rqt_bhand" not found
RosPluginProvider._parse_plugin_xml() plugin file "/home/ubuntu/3DGripper_ws/src/Barrett_hand/barrett_hand/rqt_bhand/plugin.xml" in package "rqt_bhand" not found
qt_gui_main() found no plugin matching "rqt_bhand"
try passing the option "--force-discover"

any help is appreciated, thanks