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 Loops and Final Touches Magic Numbers and Constants

Matt Fredericks
Matt Fredericks
8,367 Points
Posted by Matt Fredericks
Matt Fredericks
8,367 Points

Receiving a compilation error for the _location variable with the same finished code.

namespace TreehouseDefense { class Tower { private const int _range = 1; private const int _power = 1;

private readonly MapLocation _loacation;

public Tower(MapLocation location)
{
  _location = location;
}

public void FireOnInvaders(Invader[] invaders)
{

  foreach(Invader invader in invaders)
  {
    if(invader.IsActive && _location.InRangeOf(invader.Location, _range))
    {
        invader.DecreaseHealth(_power);
        break;
    }

  }

}

}

Tower.cs(12,7): error CS0103: The name `_location' does not exist in the current context.

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

It's just a spelling error. The variable is being defined with the name "_loacation" (with an extra "a").