Compile - Error (10481): VHDL Use Clause error at auk_ddr_controller.vhd(35):

I just tried to recompile C:\altera\90sp2\nios2eds\examples\vhdl\niosII_cycloneII_2c35\standard

With Qaurtus(+Nios) 9.0sp2

And I get same error although ddr_sdram_controller-library is in Project libraries (already in Assignments settings).

I success compiling by :

backup the altera example first !

* removing db, incremental_db folders

* regenerating SOPC (with Sopc Builder)

I have warning messages.

I don't sure it is working good