[DRC 23-20]规则违规（INBB-3）黑匣子实例

我有一个第三方IP corest的设计，最初是使用Xilinx ISE工具实现的。
但是，我正在使用Vivado 2015.4，它在实施过程中给了我DRC黑盒子错误。
即使在VIvado中创建ROM并用最新的IP替换旧IP，错误仍会继续。
它改变了：
[DRC 23-20]规则违规（INBB-3）黑匣子实例 - 类型为'WJX_cs_top_inst / xLDPC_Decoder / swc_ldpc_dec_inst / U_LCD01GC / U_ROM / U_ROM01G0 / rom01g0'的单元'WJX_cs_top_inst / xLDPC_Decoder / swc_ldpc_dec_inst / U_LCD01GC / U_ROM / U_ROM01G0'未定义
内容并被视为黑匣子。
必须为opt_design定义此单元格的内容才能成功完成。
至
[DRC 23-20]规则违规（INBB-3）黑匣子实例 - 类型为'WJX_cs_top_inst / xLDPC_Decoder / swc_ldpc_dec_inst / U_LCD01GC / U_ROM / U_ROM01G0 / xil_defaultlib_rom01g0'的单元'WJX_cs_top_inst / xLDPC_Decoder / swc_ldpc_dec_inst / U_LCD01GC / U_ROM / U_ROM01G0'未定义
内容并被视为黑匣子。
必须为opt_design定义此单元格的内容才能成功完成。
任何帮助将不胜感激。
谢谢，
米拉



以下为原文

I have a design with third party IP cores that were originally implemented using Xilinx ISE tool.  However, I'm using Vivado 2015.4 and it is giving me DRC black box errors during implementation.  Even after creating the ROMs in VIvado and replacing the old IPs with the latest IP, the errors continue.

It changed from :
[DRC 23-20] Rule violation (INBB-3) Black Box Instances - Cell 'WJX_cs_top_inst/xLDPC_Decoder/swc_ldpc_dec_inst/U_LCD01GC/U_ROM/U_ROM01G0' of type 'WJX_cs_top_inst/xLDPC_Decoder/swc_ldpc_dec_inst/U_LCD01GC/U_ROM/U_ROM01G0/rom01g0' has undefined contents and is considered a black box.  The contents of this cell must be defined for opt_design to complete successfully.

to
[DRC 23-20] Rule violation (INBB-3) Black Box Instances - Cell 'WJX_cs_top_inst/xLDPC_Decoder/swc_ldpc_dec_inst/U_LCD01GC/U_ROM/U_ROM01G0' of type 'WJX_cs_top_inst/xLDPC_Decoder/swc_ldpc_dec_inst/U_LCD01GC/U_ROM/U_ROM01G0/xil_defaultlib_rom01g0' has undefined contents and is considered a black box.  The contents of this cell must be defined for opt_design to complete successfully.

Any help would be greatly appreciated.
Thanks,
Meera