I have followed installation steps from the core plot in Application url. As defined in subject, core plot version is 1.0 which was tried with iPhone 5.0 Simulator in Xcode 4.2.
Problem solved.CorePlot installation is working perfectly now.
as per existing example.header path details is set with framework path.and I've added framework directory in application.
but instead of adding framework directory in application only need to add CorePlotHeaders directory.
hope, answer could help to others.