app.mk: No such file or director

hi,

i just installed nios2 ide on Ubuntu hoping to escape from cygwin. Unfortunately here, I get these errors when trying to build the DE2_70_NIOS_HOST_MOUSE_VGA example:

/components/altera_hal/build/app.mk: No such file or directory

/components/altera_hal/build/system.mk: No such file or directory

...probably more will follow...

I think I set the environment ok. Here are the environment variables I set:

QUARTUS_ROOTDIR=/opt/altera9.0/quartus

SOPC_KIT_NIOS2=/opt/altera9.0/nios2eds

SOPC_BUILDER_PATH=${SOPC_KIT_NIOS2}

PERL5LIB=/bin:${QUARTUS_ROOTDIR}/sopc_builder/bin/perl_lib:${QUARTUS_ROOTDIR}/sopc_builder/bin/europa:${QUARTUS_ROOTDIR}/sopc_builder/bin:

SOPC_BUILDER=/opt/altera9.0/quartus/sopc_builder

LM_LICENSE_FILE=/opt/

PATH=$PATH:/opt/altera9.0/quartus/bin:/opt/altera9.0/nios2eds/bin

so...what's wrong?