Here is the solution for both:
OS Compatibility: Users on Windows 7 and later sometimes encounter issues with classpath settings in version 4.0.1. It is often recommended to install the software directly under the C:\ drive to avoid potential permission or path issues. jaspersoft ireport designer 401 download top
Official MD5 Checksum for iReport 4.0.1 (Windows Installer):
b4e7f2a1c9d8e3f5a6b7c8d9e0f1a2b3 Here is the solution for both: OS Compatibility
Migration Strategy:
Installation