C++ static library and constructor

Question

I was following http://msdn.microsoft.com/en-us/library/ms235627.aspx to create a static library and use it in other projects located in the same solution. It works fine with static functions; However, when I try to create a constructor, it gives me error LNK2019: unresolved symbol and error LNK1120. Am I not allow to create a constructor in static library??

Loogger.h

namespace logger
{
    class Logger
    {
    public:
        Logger(int i);
        ~Logger();
    }
}

Logger.cpp

namespace logger
{  
    Logger::Logger(int i)
    {
        clog << "In the constructor" << i << endl;
    }
}

Main.cpp: (in a separate project)

int main(void)
{
    Logger log(3);
    return 0;
}

Error:

Answer 1

You missed to define a destructor function for your Logger class:

Logger::~Logger()
{
}

Either omit the declaration for it (the compiler creates a default version), or do as shown above.