| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | Could not find or load main class | Missing or wrong Java version | Install Java 8 and specify path in .ini file | | Failed to load the JNI shared library | 32-bit/64-bit mismatch | Ensure both Studio and Java are either 32-bit or 64-bit | | UnsupportedClassVersionError | Java 9+ used at runtime | Uninstall newer Java versions or change JAVA_HOME | | Report preview shows blank screen | Graphics driver or DPI scaling | Run with -Dswt.autoScale=exact in .ini file | | Font 'Arial' not found on Linux | Missing Windows fonts | Install msttcorefonts via sudo apt install ttf-mscorefonts-installer | | Repository Explorer is empty | Workspace corruption | Close Studio, delete .metadata folder in workspace, restart |
Sometimes the exact 6.8.0 links still work directly (use at your own risk, verify checksums): download jaspersoft studio 6.8.0