This worked for me to resolve the above error: - Go to the Jaspersoft Studio installation folder, open ‘Jaspersoft Studio.ini’ file using Notepad and edit it as below. - Find the line -Xmx128m (or -Xmx1024m). Now change the default value 128m (or 1024m) to 512m. - Save and close it. - Now you should be able to open Jaspersoft Studio without getting the error message.