Error: no such variable (read trace on "::env(IP_ROOTDIR)") invoked from within "return "$::env(IP_ROOTDIR)/altera/emif/ip_arch_nd/fw_src"" - Error: no such variable (read trace on "::env(IP_ROOTDIR)") invoked from within "return "$::env(IP_ROOTDIR)/altera/emif/ip_arch_nd/fw_src"" Description Due to a problem in the Quartus® Prime Pro Edition Software version 21.1 for Linux* or Windows* operating systems, you may see an error message similar to the following when generating the EMIF or PHYLite IP for the Stratix® 10 or the Agilex™ 7 devices: Error: no such variable (read trace on "::env(IP_ROOTDIR)") invoked from within "return "$::env(IP_ROOTDIR)/altera/emif/ip_arch_nd/fw_src"" (procedure "get_iossm_firmware_source_dir" line 3) invoked from within"get_iossm_firmware_source_dir 1" (procedure "get_sim_cal_code_hex_src_filename" line 2) invoked from within "get_sim_cal_code_hex_src_filename $force_firmware" (procedure "_generate_common_fileset" line 36) invoked from within Resolution To work around this problem, ensure the Linux* or Windows* environment variable "IP_ROOTDIR" is set to the ip sub-directory in the Quartus® Prime Pro Edition Software installation. An example for the Windows* version is: IP_ROOTDIR = C:\intelFPGApro\21.1\ip This problem is fixed starting with the Quartus® Prime Pro Edition Software version 21.2. Custom Fields values: ['novalue'] Troubleshooting 18015861194 False ['External Memory Interfaces Stratix® 10 FPGA IP', 'Memory Interfaces and Controllers'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 21.2 21.1 ['Agilex™ 7 FPGAs and SoCs', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']