generating i2c in sopc

hi everybody,

I have another one problem in generating a system in sopc . here is my procedure.

With the class.ptf file in the address below: http://users.ece.gatech.edu/~hamblen/de2/de2_demonstrations/de2_net/user_logic_open_i2c/ I create a new component . there is a error in generating the system. there it is:

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Perlcopy: cannot open source file C:/User/shalom/vhdl/i2c_master/hdl/i2c_master_bit_ctrl.v: No such file or directory at c:/altera/70/quartus/sopc_builder/bin/filename_utils.pm line 182.

Error: Generator program

for module 'i2c_master_0' did NOT run successfully.

generator cmd was 'c:/altera/70/quartus//bin/perl/bin/perl

# ##############

thanks by advance of the help.