When generating a Serial Rapid IO v4.1 Core, the core fails to generate and might cause Project Navigator to close without any error. If you look in the project directory, you might find the "coregen.log" file, and it might indicate the following error:
"For ordering information, please refer to the
product page for this component on www.xilinx.com
FLEXlm Error: No such feature exists. (-5,21)
ERROR:Xst:1484 - A core is unlicensed!"
This problem is seen due to the missing IP license file. The default "simulation-only Evaluation" license was supposed to be delivered with the IP Update; however, it was not included in the IP Update #1 for 9.1i.
A patch is available to address this issue.
Please see (Xilinx Answer 25118).