Illegal redeclaration of module <glbl>.&Element index 2 into memp is out of bounds

ISIM仿真warning：

下面是其他人遇到的同样的错误，还没有解决。

http://forums.xilinx.com/t5/Synthesis/Simulation-and-Compilation-issues-with-Cosine-Sine-LUT-core/td-p/166664

http://forums.xilinx.com/t5/Simulation-and-Verification/Post-route-sim-fail/td-p/164932

那位大神知道怎么么解决？？