I am happy that you responded but the report created on Studio 6.21 unable to run on web studio giving some weird errors on the other hand report created through studio 9.0 doesn't give any error to me. So are you sure on that ? So as per your answer i should assume that web studio 3.0 support jasper version 6.21 , 7.x ,8.x and 9.x can we state that @Giulio Toffoli?