Can STEVAL-SMARTAG1 modify the code?

[Schuyler]

I am using Keil and want to debug the code on STEVAL-SMARTAG1.I modified part of the code, but the following error occurred during the download, resulting in the download failure, but I used the FP-SNS-SMARTAG1 code can be downloaded, can the code be modified?Here is a picture of Keil's error：