<Kotlin: Keyword cannot be used as a reference> fu...

# stackoverflow

[user]

Kotlin: Keyword cannot be used as a reference
fun main() {
print("This is a calculator")
print("enter your first number")
val no1 = readLine()!!
print("enter your operation")
val operation1 = readLine()!!
print("enter your second number")
val no2 = readLine()!!

val result = if(operation1 == '*')
print("$val no1 * $val no2")



}

It keeps coming up with Kotlin: Keyword cannot be used as a reference. I am very new to kotlyn and I am just trying to create a basic calculator. PLease help.