DRC 23-20规则违规（INBB-3）选项设计实施阶段的黑匣子实例错误

我正在研究AC701板。
我有一个项目，我使用3个IP。
一个FFT IP＆amp;
两个DDS NCO IP。
这些IP是使用ISE 14.7生成的。
几年前，我参与了一个需要这些IP的项目。
该项目是在Vivado 2015.1中完成的。
对于该项目，我按原样使用这些ISE 14.7生成的IP。
该项目实施良好，没有任何错误。
现在，我正在开发一个不同的项目，需要这3个IP。
我现在有Vivado 2016.2。
当我在我的项目中添加这些IP时
尝试实现它，我在opt_design阶段得到错误
[DRC 23-20]规则违规（INBB-3）黑匣子实例 - 'acqn / fft_ifftAH / inst_fft1_v7 / fftifftcore_v7'类型的单元'acqn / fft_ifftAH / inst_fft1_v7'具有未定义的内容，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。
我不知道这个。
这些知识产权在2015.1被接受。
事实上，那个旧项目（第1段），我已迁移到2016.2＆amp;
试图再次运行实施，＆amp;
现在它失败了。
想象一下。
该项目已成功实施，测试，批量生产和
卖给客户＆amp;
现在2016.2告诉我有opt_design错误。
请帮忙。
不，我无法将IP升级到最新版本。
所以不要再提那个了



以下为原文

I am working on AC701 board. I have a project in which I use 3 IPs. One FFT IP & two DDS NCO IPs. These IP's were generated using ISE 14.7. A few years back, I worked on a project that required these IP's. That project was done in Vivado 2015.1. For that project, I used these ISE 14.7 generated IPs as is. The project implemented fine without any errors.

Now, I am working on a different project, that requires these 3 IPs. I now have Vivado 2016.2. When I add these IPs in my project & try to implement it, I get error at opt_design stage

[DRC 23-20] Rule violation (INBB-3) Black Box Instances - Cell 'acqn/fft_ifftAH/inst_fft1_v7' of type 'acqn/fft_ifftAH/inst_fft1_v7/fftifftcore_v7' has undefined contents and is considered a black box.  The contents of this cell must be defined for opt_design to complete successfully.  

I have no idea regarding this. These IPs were accepted fine on 2015.1. In fact, that old project (in paragraph 1), I migrated to 2016.2 & tried to run implementation again, & now it fails. Imagine that. That project was successfully implemented, tested, mass produced & sold to customers & now 2016.2 tells me there is opt_design error.

Please help. No, I cannot upgrade the IP to its latest version. So don't bother mentioning that