what is error in this code ,code get error when i submit in the leedcode [closed]

You are climbing a staircase. It takes n steps to reach the top.

Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

class Solution {
    public int climbStairs(int n) {
    int dp[]=new int[n+1];
    dp[0]=1;
    for(int i=0;i<=n;i++){
        if(i=1){
            dp[i]=dp[i-1]+0;

        }
        else{
            dp[i]=dp[i-1]+dp[i-2];
        }
        }
                        return dp[n];
    }
    }