Hello, I am using cycloneIV device for a simple project to explore tool using web version. and ended up with following error at simulation.

Hi,

Have you compiled the Cyclone IV FPGA device libraries for ModelSim. If using the Intel FPGA version, then at the vsim command line you will have to specify the library name using the -L option..

vsim -work.. -L 220model_ver -L altera_mf_ver -L cycloneive_ver -L alteralnsim_ver -L altera_ver -L fiftyfivenm_ver -L lpm_ver -L twentynm_ver. This will include the device libraries for simulation.