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AR# 9746

3.1i DS1 COREGEN - ERROR: Error locating library for class com.xilinx.ip.ulprimitives.FDCE.


Keywords: Core Generator, d_ip1, service pack 1, dolomite, 3.1i, sine, cosine,
divider, multiplier, 3.1.01i, xc4000, spartan, error, locating, class, ulprimitives

Urgency: Hot

General Description
After installing 3.1i Service Pack 1 from Xilinx, you may get following message
when generating a core:

SELECT Sine-Cosine_Look-Up_Table XC4000 Xilinx 1.0
CSET Output_Width = 8
CSET Input_Width = 6
CSET Component_Name = sin_cos_4k
ERROR: Error locating library for class com.xilinx.ip.ulprimitives.FDCE.
ERROR: Error loading library for class com.xilinx.ip.ulprimitives.FDCE
ERROR: Could not load/define class file com.xilinx.ip.ulprimitives.FDCE.
ERROR: An internal error has occurred. To resolve this error, please
consult the Answers Database at http://support.xilinx.com
ERROR: Sim has a problem implementing the selected core. Implementation
netlist will not be generated.
ERROR: SimGenerator: Failure of Sim to implement customization
parameters core sin_cos_4k
ERROR: Core sin_cos_4k did not generate EDIF implementation
netlist (.EDN) file.
WARNING: Warnings and/or errors encountered while generating
sin_cos_4k (Sine-Cosine_Look-Up_Table 1.0) All output
products requested may not have been generated.
ERROR: Elaboration failure for core Sine-Cosine_Look-Up_Table
ERROR: Elaboration of core Sine-Cosine_Look-Up_Table failed.



If you have installed D_IP1 ( IP update) already prior to installing
Service Pack 1, then D_IP1 must be re-installed.
If you have not installed D_IP1 already, then install D_IP1 over
Service Pack 1.

Proper order of installation is:
1) 3.1i Implementation Tool from CD
2) Service Pack 1 (DS1)
3) D_IP1 update


This problem is due to an incompatible .xml file in the CD and DS1.

Delete $XILINX/coregen/ip/corelib.xml
This file needs to be deleted just once. The correct file will be
regenerated the next time COREGEN is invoked.
AR# 9746
Date Created 07/19/2000
Last Updated 08/23/2002
Status Archive
Type General Article