Error while Compilation of code in Quartus II 9.0 Version

My project is "Implementation of Advanced Encryption Standard". In that I'm running QPF file of my project code & I found following errors.

Error: Tcl error: can't find package :: ddr :: settings

while executing

"package require :: ddr :: settings"

(file "verify_timing_for_sdram.tcl" line 54)

invoked from within

"source verify_timing_for_sdram.tcl"

(file "auto_verify_ddr_timing.tcl" line 11)

Error: Evaluation of tcl script auto_verify_ddr_timing.tcl unsuccessful

Error: Quartus II shell was unsuccessful. 2 errors, 0 warnings

Error: Quartus II full compilation was unsuccessful. 4 errors, 0 warnings