Tagtool Error

We are using tagtool application,
When stating the tagtool, we are getting below error

Warning: Could not find the application's symbol font.
It will not be possible to display certain symbols and icons.
You may have to set the X server's font path manually
with the xset command or equivalent. For example, if you
are running an X11R5 or later X server use
xset +fp /proj/apzproj/CNES_R12/lib/epic/Xfonts/pcf
before running the product. If you are using an X terminal or
an X emulator on a PC you may have to use a font server or else
compile the fonts. See /proj/apzproj/CNES_R12/lib/epic/src/Xfonts/bdf/README for details.

Please guide how to resolve this issue