Changing Qsys project name and generatin new component (reusability)

Hello, I´m trying to re-use the basic Nios2 tutorial I have by renaming it and changing a few setting (more memory, fpointer, etc...).

However, every time I try to generate the block I get this error.:evil:

error: onchip_mem: wrong# args: should be "sub_quartus_synth name"

while executing

"sub_quartus_synth hello_nios2 _copy_onchip_mem"

This happens even if I don´t change any thing in the design.:eek:

Thank you guys.