Design Space Explorer II compilation errors: "[Errno 99] Cannot assign requested address" and "[Errno -3] Temporary failure in name resolution" - Design Space Explorer II compilation errors: "[Errno 99] Cannot assign requested address" and "[Errno -3] Temporary failure in name resolution" Description If the Design Space Explorer II fails to obtain a network IP address for your machine when running a compilation, the program may generate an [Errno 99] Cannot assign requested address or [Errno -3] Temporary failure in name resolution message. Resolution To fix these errors, navigate to the < revision >.dse file and add the line host=<your IP address> . You can use the following commands in your machine\'s command line tool to obtain your IP address: on a Windows/Linux platform, use ping <hostname> ; on a Windows platform, use ipconfig ; and on a Linux platform, use /sbin/ifconfig . If you are unable to determine your IP address and your compilation type is local, you can use host=127.0.0.1 . Custom Fields values: ['novalue'] Troubleshooting FB291560; True ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 15.1 15.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']