I am having trouble with the output of this code, it is written in Kotlin. Every time I try to use it sends the error A 'return' expression required in a function with a block body ('{...}'). I am not sure what this means.

Here is the code (it takes in input from the user, the angle, and determines its positon)

fun compassDirection(angle: Double): Int { if(337.5<=angle && angle<=360) { return 1 } else if(292.5360) { return 9 } }

fun main(args : Array){ var angle : Double = args[0].toDouble() if(compassDirection(angle) == 1) { println("North West Direction") } else if(compassDirection(angle) == 2) { println("West Direction") } else if(compassDirection(angle) == 3) { println("South West Direction") } else if(compassDirection(angle) == 4) { println("South Direction") } else if(compassDirection(angle) == 5) { println("South East Direction") } else if(compassDirection(angle) == 6) { println("East Direction") } else if(compassDirection(angle) == 7) { println("North East Direction") } else if(compassDirection(angle) == 8) { println("North Direction") } else if(compassDirection(angle) == 9) { println("Invalid input. Value should be between 0 to 360 degree") } }