The DLL configuration of a Spartan-IIE triggers an incorrect placer error; the error refers to secondary DLLs that do not exist in Spartan-IIE devices. The following error occurs:
"ERROR:Place:110 - The DLL iCLKDLL_A (Secondary DLL) is one of a pair of DLLs. The other DLL (Primary DLL) is iCLKDLL_2X. Because they are a pair, they must be placed together. The Secondary DLL is NOT placed in a secondary DLL location."
This issue is currently under investigation. Meanwhile, you can work around this problem by setting the following environment variable:
setenv SKIP_PLACE_DLLDRC 1
For more general information about setting ISE environment variables, see (Xilinx Answer 11630).