Hi Mikhail, I used the download link to download the source files of your program, but apparently only the API is available on GitHub. Unfortunately, none of your .sln files are being complied. I ended up with more than 4600 errors. As you have a big big big big set of codes there is no way I could understand how to fix the problem. Please let me know how the codes can be compiled? Also please fill the Debug Folder by running the codes once, so that we gain an insight of how the final program would look like Looking forward to hearing from you. With regards,