NIOS II Project

Hello everyone,

I am facing a problem with building a project on NIOS II IDE. I have done a simple program and when i build the project, it shows the following message
"make -s all includes make: *** No rule to make target `C:/Users/H_AB/Desktop/Doc/Nouveau', needed by `/cygdrive/c/Users/H_AB/Desktop/Doc/Nouveau/Debug/system_description/../obj/generated_app.mk-t'. Stop."

I can't identify the error and i dont know how to deal with this. Any ideas please ?

Thank you.