FIFORAM ERROR quartus 15.1

Hi,

I have a design created in Quartus 15.0 and it compile fine. I updated my design to quartus 15.1 however I now get the following message. I cannot find anything related to altsyncram_9su1 within my design. Any ideas?

Error (12006): Node instance "FIFOram" instantiates undefined entity "altsyncram_9su1". Make sure that the required user library paths are specified correctly. If the project contains EDIF Input Files (.edf), make sure that you specified the EDA synthesis tool settings correctly. Otherwise, define the specified entity or change the calling entity. The Altera Knowledge Database contains many articles with specific details on how to resolve this error. Visit the Knowledge Database at https://www.altera.com/support/support-resources/knowledge-base/search.html and search for this specific error message number.