vccs problem in Finesim simulation

[nozombie]

Hi,

I'm working one generating a VCCS in finesim.
The code is as follows :

Videal ideal 0 1
rpolyres ideal 0 50k
gin_current IN OUT pwl(1) IN OUT 0 0 0.1 0 0.2 'i(videal)'

Howere, I always get an error saying 'ERROR! variable in static expression'
I checked the .sp file and find that it is the 'i(videal)' that causes this problem, is there any way to solve this?
I need the current in node Videal as the final current of the VCCS.

Thanks a lot!