Error: Error writing sopcinfo report java.lang.OutOfMemoryError: Java heap space - Error: Error writing sopcinfo report java.lang.OutOfMemoryError: Java heap space Description You may see the following or similar error when generating a large design from Qsys. Error: Error writing sopcinfo report java.lang.OutOfMemoryError: Java heap space Resolution To work around the problem, launch Qsys from a command prompt using the qsys-edit command with the --jvm-max-heap-size=<size><unit> command line argument, where <size> is an integer value and <unit> is m (or M) for megabytes or g (or G) for gigabytes. This will run Qsys with an increased Java heap size. The qsys-edit command should be run from the current Quartus project directory. For example, to run qsys with increased heap from the Windows command prompt: cd <quartus_project_directory> %QUARTUS_ROOTDIR%\sopc_builder\bin\qsys-edit --jvm-max-heap-size=<size><unit> For example, to run qsys with increased heap from the Linux command prompt: cd <quartus_project_directory> /sopc_builder/bin/qsys-edit --jvm-max-heap-size=<size><unit> The Qsys default java heap size is 512M. Specifying a larger value will avoid running out of heap memory. For more information regarding qsys-edit command line arguments, please see the Running the Qsys Editor with qsys-edit (PDF) document. This problem is addressed and resolved in the 14.0 release of the Quartus II software. Related Articles Error : exception in thread java.lang.outOfMemoryError: java heap space Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 12.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']