[Vala] Creating shared libraries erros out

Hello, I have probably a short stupid question. I am using Monodevelop vala plugin and just trying to develop something based on shared library. I have compiled the library project first. Then I have included .vapi file of this library and .vapi path to the project options. However when I try to u

[Vala] How to use Posix namespace

Hello, Sorry for newbie question... but how can I use Posix namespace in my project? When I type --- using Posix; --- The compiler returns an error --- The namespace name `Posix' could not be found --- However I was able to find the posix.vapi file in /usr/share/vala/vapi/. How do I use it?