Getting the Signal Waveforms into the Waveform Window with Xrun Command

Dear All,

In Simvision, I want to load the saved signal names (not historical database values) of a design, when running a new simulation. Usually what I do is : 

xrun -clean ASYNC_FILTER.v  tb_async_fb.v  -v llk65nmmvbbr_sdf30.v -access +rwc -mess -timescale 1ns/1ps -gui

and then in the gui, I load the signals from an .svwf file !

I want to do this in a single xrun command, so I tried : 

1. xrun -clean ASYNC_FILTER.v  tb_async_fb.v  -v llk65nmmvbbr_sdf30.v -access +rwc -mess -timescale 1ns/1ps -gui -simvisargs "waveform loadsignals -using Waveform Window 1 FB1.svwf" and I always get an error.

2. xrun -clean ASYNC_FILTER.v tb_async_fb.v -v llk65nmmvbbr_sdf30.v -input load_wave.tcl -access +rwc -mess -timescale 1ns/1ps -gui and the load_wave.tcl has : 

waveform loadsignals -using "Waveform 2" FB1.svwf

This also gives errors. How can I get this solved ?

Thanks