Why I can't catch the exception?

[Suliman via Digitalmars-d-learn]

I really can't understand why try-catch block do not handle 
exception.
digit 1 is printing, so exception is accrue after it, but why 
nothing in catch block?

http://img.ctrlv.in/img/16/06/05/57546861d8e81.png

Here is my code:

void dbSetup()
{
     try
     {
         //getcwd do not return correct path if run from task 
shoulder
         string dbpath = 
buildPath((thisExePath[0..((thisExePath.lastIndexOf("\\"))+1)]), 
dbname);
         if(!dbpath.exists)
         {
             writeln("It's seems you are runnining Application 
first time\n You should set up admin password");
             auto db = DataBase(dbname);
             writeln("1");
             auto usersCollection = db.collection!User("Users", 
true); // base on struct User
             usersCollection.put(User(0, "admin", "123", 
"admins")); // defaults
             writeln("2");
             writeln("[INFO] db with default credentials created");
         }

         else
         {
             writeln("[INFO] db exists");
             return;
         }
     }

     catch(Exception e)
     {
         writeln("Can't setup DB");
         writeln(e.msg);
     }

}

I am using https://gitlab.com/PiotrekDlang/DraftLib/