Why do I get rqt_graph_plugin missing error message when my rqt_graph works?

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I have installed Ros 2 Foxy Fitzroy in my windows 10 laptop.

When I run rqt_graph on my cmd prompt, admin or not, I get those four error messages:

RosPluginProvider._parse_plugin_xml() plugin file "c:\opt\ros\foxy\x64\share\rqt_gui_cpp/plugin.xml" in package "rqt_gui_cpp" not found

RosPluginProvider._parse_plugin_xml() plugin file "c:\opt\ros\foxy\x64\share\rqt_gui_cpp/plugin.xml" in package "rqt_gui_cpp" not found

RosPluginProvider._parse_plugin_xml() plugin file "c:\opt\ros\foxy\x64\share\rqt_image_view/plugin.xml" in package "rqt_image_view" not found

RosPluginProvider._parse_plugin_xml() plugin file "c:\opt\ros\foxy\x64\share\rqt_image_view/plugin.xml" in package "rqt_image_view" not found

How do i solve those issues?

My RQT graph works, but it looks very odd, the lines are pixelated and icons are too small, and some text are outside the windows. That is another issue i want to solve but how?