MySQL Plugin Issue

Hi guys,

I’m actually developing an online game and trying to build a MySQL plugin based on Jusas SQLite3UE4 plugin.
I “cleaned” all the function keeping the standard code. I got this working and compiling, but when i call sql::Connection in my first function, i get an error : " Unrecognized type ‘sql’ ".

I’m not really a c++ programmer, but I know C and Java, so i still can understand global notions.

Do you guys got an idea about how to solve this problem?

I attached all my source files.