Could not find rtl_work.TB.vhd

Hello,

Seems all of this work, But:

when i copy fixed_pkg_c.vhdl & fixed_float_types_c.vhdl now everything goes ok!

vcom -work rtl_work fixed_float_types_c.vhdl# Model Technology ModelSim ALTERA vcom 10.0c Compiler 2011.09 Sep 21 2011# -- Loading package STANDARD# -- Compiling package fixed_float_types

vcom -work rtl_work fixed_pkg_c.vhdl# Model Technology ModelSim ALTERA vcom 10.0c Compiler 2011.09 Sep 21 2011# -- Loading package STANDARD# -- Loading package TEXTIO# -- Loading package std_logic_1164# -- Loading package NUMERIC_STD# -- Loading package fixed_float_types# -- Compiling package fixed_pkg# -- Loading package MATH_REAL# -- Compiling package body fixed_pkg# -- Loading package fixed_pkg# ** Warning: [3] fixed_pkg_c.vhdl(1470): (vcom-1246) Range 0 downto 1 is null.# ** Warning: [3] fixed_pkg_c.vhdl(1471): (vcom-1246) Range 0 downto 1 is null.# ** Warning: [3] fixed_pkg_c.vhdl(1472): (vcom-1246) Range 0 downto 1 is null.# ** Warning: [3] fixed_pkg_c.vhdl(6888): (vcom-1246) Range 2 to 1 is null.

but if i close the modelsim and launch it (even having compiled again) reappears the error:

# ** error: (vsim-3170) could not find 'c:\users\alfonso\desktop\pfc\simulation\modelsim\ rtl_work.tb_pfc_main'.# Error loading design# Error: Error loading design # Pausing macro execution # MACRO ./PFC_run_msim_rtl_vhdl.do PAUSED at line 34

how do i do to save the results??

To launch ok modelsim i've got to close the console and reestart the modelsim, wich takes me to # ** error: (vsim-3170) could not find 'c:\users\alfonso\desktop\pfc\simulation\modelsim\ rtl_work.tb_pfc_main'.

Thank you!!