Results 3 issues of Othmane

I have seen that a new example 43 on bonds has been added . I have this error while running it. Anybody has the same error ? ![image](https://user-images.githubusercontent.com/82666104/235713421-21f50d9f-d554-426a-b100-885581ef5fe5.png)

I m building a bond option trade. The goal is to calculate the NPV. As it was mentionned in the userguide , we can use referencedata.xml to build our bondoption...

I m trying to adapt example 18 to calculate the npv on a bond option trade. I get this error on the logs: ``` NOTICE [2023-May-04 11:59:07.310847] (OREData\ored\portfolio\portfolio.cpp:123) : Building...