Problem RTL Simulation with ModelSim in Quartus II 9.0

Hello,

I've recently installed Quartus II 9.0 and Modelsim-Altera (using the new installation package of 9.0), but when I tried to run Tools/Run RTL Simulation I get the following error message box:

"Can't launch the $tool software -- the path to the location of the executables for the $tool software were not specified or the executables were not found at specified path."

I check the modelsim executable path in Tools/Options/EDA Tool Options, and I found that the Modelsim executable path is set correctly to point at <Modelsim path>/win32aloem/modelsim.exe, so I can't figureout where the problem is!!

I've very little knowledge of Tcl scripts, but I opened the script modelsim.tcl, and I found that it enters in the above error condition according to the following code:

if {$vsim_cmd == ""} {

nl_postmsg error "Error: Can't launch the $tool software -- the path to the location of the executables for the $tool software were not specified or the executables were not found at specified path."

nl_postmsg error "Error: You can specify the path in the EDA Tool Options page of the Options dialog box or using the Tcl command set_user_option."

error "" ""

}

$vsim_cmd was set somewhere else in the script to:

# This function launches the modelsim executable

proc ::quartus::nativelinkflow::sim::launch_sim {args} {

set err_cnt 0

set script_args ""

set msim_do_file_name ""

namespace import ::quartus::nativelinkflow::resolve_tool_path

set vsim_cmd [resolve_tool_path "sim" "vsim"]

set msim_cmd [resolve_tool_path "sim" "modelsim"]

But I can't trace how "resolve_tool_path" is imported and where it's set??!!

Has anyone faced this problem before with Quartus II 9.0??

Note: I'm using the 30-day evaluation version

Thanks for ur help

Regards