Sub-folders in project libraries - "Can't find Block Symbol File for symbol ..."

[Altera_Forum]

Hi there, 

I'm running QuartusII 11.1 on Ubuntu 11.04. I have a folder Module_Development, where I'm developing specific modules in separate projects - again located in sub-folders. Now, if I want to develop a new module, that integrates an already existing module, i kind of run into problems. If I define the Module_Development folder as a project or general library, and try to add a symbols of a module to my design, i get the error message "Can't find Block Symbol File for symbol xxxx -- if the file... "  Is it possible, that quartus is not prepared to handle such a sub folders setup? What is a smart way to avoid this problem. Is there a fundamental issue with my approach to system design? Or my understanding of libraries. Must I still, in addition to the libraries, add the files to the project?  Thanks a lot for any input on that issue!

[Altera_Forum]

Somehow I'm having issues with library management under Linux. Could this be caused by the underlying file-system? I'm pointing to my libraries with absolute paths. 

Nobody experiencing same problem? Thanks in advance!  Steffen

[Altera_Forum]

i never got libraries to work how i wanted them to in Quartus 

 instead i generate a .qip for each component

[Altera_Forum]

Thanks. To me it also seems as if they're not working properly. I get what I want by adding the single files through Settings->Files. Can you get a bit more precise on the .qip ? Any reference explaining the function/concept? Thanks a lot!

[Altera_Forum]

all Altera IP generates a .qip, take a look