Error in generating EMIF interface IP - Error in generating EMIF interface IP Hi all, I am facing issue while generating "External memory inerface for intel Startix 10 FPGA" as follows, Error: no such variable (read trace on "::env(IP_ROOTDIR)") invoked from within "return "$::env(IP_ROOTDIR)/altera/emi f/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_file name" line 2) invoked from within "get_sim_cal_code_hex_src_file name $force_firmware" (procedure "_generate_common_fileset" line 36) invoked from within "_generate_common_fileset $top_level $if_ports" (procedure "sim_fileset_callback" line 14) invoked from within "sim_fileset_callback $top_level 1" (procedure "::altera_emif::ip_arch_nd::ma in::sim_vhdl_fileset_callback" line 2) invoked from within "::altera_emif::ip_arch_nd::ma in::sim_vhdl_fileset_callback ddr_interface_ip_altera_emif_a rch_nd_191_kkncmra" Error: qsys-generate failed with exit code 1: 1 Error, 0 Warnings Error: SPD file was not generated: C:\Users\murali.kumar\Desktop\ Muralikumar\ddr_gen\ddr_interf ace_ip\ddr_interface_ip.spd Error: Could not generate simulation scripts Error: no such variable (read trace on "::env(IP_ROOTDIR)") invoked from within "return "$::env(IP_ROOTDIR)/altera/emi f/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_file name" line 2) invoked from within "get_sim_cal_code_hex_src_file name $force_firmware" (procedure "_generate_common_fileset" line 36) invoked from within "_generate_common_fileset $top_level $if_ports" (procedure "::altera_emif::ip_arch_nd::ma in::quartus_synth_fileset_call b..." line 15) invoked from within "::altera_emif::ip_arch_nd::ma in::quartus_synth_fileset_call back ddr_interface_ip_altera_emif_a rch_nd_191_kkncmra" Error: qsys-generate failed with exit code 1: 1 Error, 0 Warnings about this error I have searched in community and found similar error, and the solution was to change the environment variable(i.e related to Directory) , I have changed that. But, Still i am facing the same issue. Kindly help me to solve the issue. Thanks MuralikumarM Replies: Re: Error in generating EMIF interface IP You may want to check the KDB below. https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/emif/2021/error--no-such-variable--read-trace-on----env-iprootdir----invok.html