Use iReport 5.0.1 for maintaining legacy reports, but consider Jaspersoft Studio for all new projects. If you'd like, I can help you: Troubleshoot a specific "failed to launch" error. Find the exact JDK path for your operating system.
Drag-and-drop elements like charts, images, and subreports. ireport 5.0 1 download
Once you have the zip or installer file, follow these steps to ensure a smooth launch: 1. Configure the JDK Use iReport 5