Hi all, I am using IUS82, MMSIM 711, IC 6.1.3 I am trying to simulate a co-simulation of vhdl, verilog, and spectre in config view. The simulation stops with this errors (attached the part of the log file below) Thanks a lot for your help Cheers Dinac ******************************************************************************** ......... ........ ncvlog: Memory Usage - 9.5M program + 8.7M data = 18.2M total ncvlog: CPU Usage - 0.0s system + 0.0s user = 0.0s total (0.0s, 90.4% cpu) Successfully compiled ('mixspi_vco' 'top_design' 'schematic'). Compilation successful. ncelab(64): 08.20-s018: (c) Copyright 1995-2009 Cadence Design Systems, Inc. ncelab: *E,NOUNIT: Unable to find a unit named 'mixspi_vco.top_design:schematic' in the libraries. ncelab: *E,NOUNIT: Unable to find a unit named 'mixspi_vco.cds_globals:top_design_ config_design_SPI_VCO' in the libraries. ncelab: Memory Usage - 24.1M program + 21.4M data = 45.4M total ncelab: CPU Usage - 0.0s system + 0.0s user = 0.0s total (0.0s, 78.3% cpu) Failed to elaborate ("mixspi_vco" "top_design" "config_design_SPI_VCO").