Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# C# Objects Object-Oriented Programming Fields

Posted by Louis Nathan
Louis Nathan
2,598 Points

Error CS1644: Feature 'primary constructor' cannot be used because it is not part of the C# 6.0 language specification

Game.cs(3,13): error CS1644: Feature `primary constructor' cannot be used because it is not part of the C# 6.0 language specification

Compilation failed: 1 error(s), 0 warnings

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

You forgot to show your code. Please make a snapshot of your workspace and post the link to it here.

Louis Nathan
Louis Nathan
2,598 Points

Game class

namespace TreehouseDefense {

class Game() {

 public static void Main() {
   Map map = new Map();   

   map.width = 8;
   map.height = 5;

   int area = map.width * map.height;
}

}

}

Map class

namespace TreehouseDefense { class Map { public int width; public int height; } }

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

When defining the "Game" class, don't put parentheses after the class name.