ArgumentOutOfRange Exception with dropdowns

Hi guys,

I have been trying to solve an issue all night. I am trying to get to dropdowns to populate with items. Currently only one works even though they share near identical code.

Error: ArgumentOutOfRangeException: Argument is out of range. Parameter name: index.

I removed most irrelevant code, hopefully someone can help because i am ripping my hair out over here. The resolutionsDropdown is the one with the issues. the other dropdown works flawlessly.

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 using System;
 using UnityEngine.Audio;
 
 public class mainMenuOptions : MonoBehaviour {
     private string[] qualityNames;
     private Resolution[] resolutions;
     public Dropdown qualityDropdown;
     public Dropdown resolutionsDropdown;
     public Toggle fullScreenToggle;
     public Toggle vSynchToggle;
     public AudioMixer mixer;
     public Toggle subtitleToggle;
     public Slider masterVolSlider;
     public Slider musicVolSlider;
     public Slider sfxVolSlider;
     public Slider dialogueVolSlider;
     // Use this for initialization
     void Start()
     {
         qualityNames = QualitySettings.names;
         resolutions = Screen.resolutions;
 
         for (int i = 0; i < qualityNames.Length; i++)
         {
             qualityDropdown.options[i].text = qualityNames[i].ToString();
         }
 
         for (int i = 0; i<resolutions.Length; i++)
         {
             resolutionsDropdown.options[i].text = (resolutions[i].width.ToString() + " x " + resolutions[i].height.ToString());
         }
         qualityDropdown.value = QualitySettings.GetQualityLevel();
        
     }
 
 //Snip
 
 }