what part is wrong about it?

Question

package main
import "fmt"

func main() {
var x int
fmt.Scanln(&x)

t := Timer{"timer1", 0}

for i:=0;i<x;i++ {
t.tick()
}
}

Answer 1

You have not created the structure, first create it!

Answer 2

Try:
package main
import "fmt"

type Timer struct{
//firstvalue string
//secondvalue int
}
func tick(){
//code to tick goes here
}
func main(){
var x int
fmt.Scanln(&x)
t:=Timer{firstvalue: "timer1",secondvalue:0}
for i:=0;I
i<x;I++{
tick()}}