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
Teri Dent
11,515 PointsI don't know the source of this error
Every time I try to run this challenge I get this:
swift_lint.swift:41:1: error: expected declaration
^ swift_lint.swift:25:7: note: in declaration of 'Robot' class Robot {
No clue what it means...
class Point {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
}
enum Direction {
case left
case right
case up
case down
}
class Robot {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(_ direction: Direction) {
// Enter your code below
switch direction {
case Direction.up: return self.location.y += 1
case Direction.down: return location.y -= 1
case Direction.left: return location.x -= 1
case Direction.right: return location.x += 1
}
}
1 Answer
Tassia Castro
iOS Development Techdegree Student 9,170 PointsHey Teri,
The error is pointing to the class Robot. The compiler is expecting declaration of 'Robot' because the braces were not closed.
class Point {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
}
enum Direction {
case left
case right
case up
case down
}
class Robot {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(_ direction: Direction) {
// Enter your code below
switch direction {
case Direction.up: return self.location.y += 1
case Direction.down: return location.y -= 1
case Direction.left: return location.x -= 1
case Direction.right: return location.x += 1
} // this one is closing the switch
} // this one is closing the function
}// I added this one to close the declaration of the class