generating charts in pentaho reports

["arpit4200@gmail.com" <ar...@gmail.com>]

I am trying to add charts into pentaho reports, when i run the report the space for the chart is left blank and the table of data is printed in, when i run these reports in the pentaho report designer chart shows up.

In an old thread i read that i need to add 3 jar files:-
jcommons
jfreecharts
pentaho-reporting-engine-legacy-charts

so i added them in the dependencies.gradle file, but it results in failing of the tomcatrunwar command
with the error :
unable to read jcommons.jar

bootrepackage task failed
caused by: duplicate library jfree.jar

Am i following the correct path or i need to do something else?