Error in "Run as -> Nios II Modelsim" using Eclipse SBT

Hello:

I'm using Quartus 11.1 under Ubuntu 11.10.

I've been following this(altera.com/support/examples/nios2/exm-simulating-niosii.html) tutorial, trying to simulate a system created with Qsys.

Everything goes fine, until I finally try to simulate the system in modelsim. When I execute "Run as -> Nios II Modelsim" I get the following error:

Failed Executing: make sim SPD=/home/daniel/Documentos/universidad/Proyecto/tutorial_diseno/an351_design/niosii_system_tb.spd ELF=/home/daniel/Documentos/universidad/Proyecto/tutorial_diseno/an351_design/software/hello_world_an351/hello_world_an351.elf ENABLE_VSIM_GUI=1 VSIM_DIR=/home/daniel/altera/11.1/modelsim_ase/linuxaloem  return code: 2

Checking the Nios II console, the error seems to come from the file sh_jar.sh:

Post-processing to create mem_init/niosii_system_ram.hex...
elf2hex /home/daniel/Documentos/universidad/Proyecto/tutorial_diseno/an351_design/software/hello_world_an351/hello_world_an351.elf 0x00010000 0x0001ffff --width=32 
        --little-endian-mem --create-lanes=0  mem_init/niosii_system_ram.hex
/home/daniel/altera/11.1/nios2eds/bin/sh_jar.sh: 2: Bad substitution
make: ***  Error 2

And the content of that file is:

# !/bin/sh
FILEPATH=${0//\\/\/}
_this_script=$(cd ${FILEPATH%*} && echo $(pwd 2>/dev/null)/${FILEPATH##*/})
_this_script_dir=$(dirname ${_this_script})
CMD="$0"
perl -I ${_this_script_dir} ${_this_script_dir}/pl_jar.pl "$CMD" "$@"
~                                                                       

As suggested in some forums, I tried to change the first line with "#!/bin/bash", but it didn't work.

It seems that the problem is located in the second line: "FILEPATH=${0//\\/\/}"

Has anybody else encountered with this problem? I'd really appreciate any help on this issue

Regards