How do i compile a engine with our source code

Guys anybody can help me? Im New and i want to compile my gdevelop modified engine How do i do?

I’m not sure what you’re asking for.
If you want to modify GDevelop, create a GitHub account and fork GDevelop. Then you can edit the source code as you like.
If that’s what you meant, this forum is not the right place, you should try a developer forum such as

I tried to make a post in Stack overflow but i can’t

Again, this is not the right place. If StackOverflow fails, try another developer forum, or try some dev Discord server.