can't operate the example of channel

[vip545]

I want to view the results of channel example, so i directly to execute the existing channel example without making any changes. but it shows the following problem:
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Output/Input Files:

Output Restart File: channel_rst.nc
Output History File: channel_his.nc

READ_PHYPAR - could not find input file: channel_frc.nc

Elapsed CPU time (seconds):


ROMS/TOMS - Output NetCDF summary for Grid 01:

ROMS/TOMS - I/O error ............... exit_flag: 4


ERROR: I/O related problem.

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I download the newest ROMS code. for example, in the file of ocean_channel.in, it shows that !svn $Id: ocean_channel.in 719 2014-03-13 22:25:13Z arango $’. Since the channel model uses the analytic values from Functionals, why it still asks for channel_frc.nc, I don't know how to deal it?

[kate]

Looking over channel.h, it only defineds ANA_SMFLUX if SOLVE3D is defined - and SOLVE3D is not on. You need some sort of SMFLUX for the 2D case too.