Dear All,

Greetings of the day!

I am facing couple of issues with change set, as I am doing it first time. I tried creating inbound and outbound change set and have included all parts of new development on Sandbox. 

Still when I validate it on Production, it comes up with errors.
Would you be able to guide me out on how to get through it?

Attached below are the images from sandbox and production. 

Outbound Change Set is in Sandbox
Inbound Change Set is in Produciton









Apex Controller class is 


public class customPickListInVFDemoController {
    public String Country { get; set; }
    public String City{ get; set; }
    public String Suburb { get; set; }
    public String ClientSuburb { get; set; }
    public String State { get; set; }
    public String PostCodes { get; set; }
    public String ClientState { get; set; }
    public String ClientPostCodes { get; set; }
    public Address_Details__c address { get; private set; }
    public Client__c client { get; private set; }
    public String AddrId {get; set;}
    public Id clientId;
   // public List<SelectOption> detailOptions{ get; set; }
   // public String details { get; set; }
    public Boolean bRenderDetail {get; set;}

 
//   TODO:  rename getCountriesOptions to getPostcodeOptions
    public List<SelectOption> getPostCodeOptions()
    {
         Set<String> distintList = new Set<String>();

        List<SelectOption> postCodeOptions = new List<SelectOption>();
        postCodeOptions.add(new SelectOption('','-None-'));
        for (Address_Details__c addr: [SELECT Post_Code__c FROM Address_Details__c order by Post_Code__c ])
        {
           if(distintList.Contains(addr.Post_Code__c)== FALSE)
           {
              distintList.add(addr.Post_Code__c);
             postCodeOptions.add( new SelectOption(addr.Post_Code__c , addr.Post_Code__c));
            }
        }
              return postCodeOptions;
     }
     public List<SelectOption> getSuburbsOptions() 
     {
            Set<String> distintList = new Set<String>();
        List<SelectOption> SuburbOptions = new List<SelectOption>();
        SuburbOptions.add(new SelectOption('','-None-'));
        for (Address_Details__c addr: [SELECT Suburb_Name__c FROM Address_Details__c order by Suburb_Name__c])
        {
        if(distintList.Contains(addr.Suburb_Name__c)== FALSE)
           {
               distintList.add(addr.Suburb_Name__c);

          SuburbOptions.add( new SelectOption(addr.Suburb_Name__c , addr.Suburb_Name__c));
          }
        }
        return SuburbOptions;
      }
    
    
 
    public customPickListInVFDemoController(ApexPages.StandardController stdController) 
    {
            this.client = (Client__c)stdController.getRecord();
            Id id = ApexPages.currentPage().getParameters().get('id');
            client = (id == null) ? new Client__c() : 
            [SELECT Street_Address__c, Suburb__c, State__c, Postcode__c FROM Client__c WHERE Id = :id];
    }
  
    public PageReference save()
    {
      try 
      {
           update(client);
           }
      catch(System.DMLException e) 
      {
      ApexPages.addMessages(e);
        return null;
      }
      

       //  After Save, navigate to the default view page:
          return (new ApexPages.StandardController(client)).view();
          }
 
    public void onChangePostCode() 
     {
           //PostCodes= client.Postcode__c;
          
           Suburb ='';
           bRenderDetail =true;
      }
      public void onChangeSuburb() 
      {
           PostCodes ='';
         // Suburb =client.Suburb__c;
bRenderDetail= true;

       }    

   public void onchangeDetails() 
      {
           this.address = new Address_Details__c ();
           address = [SELECT Country_Name__c, Suburb_Name__c, City_Name__c, State_Name__c, Post_Code__c FROM Address_Details__c WHERE id= :AddrId];
           client.Suburb__c= address.Suburb_Name__c ;
           client.State__c= address.State_Name__c ;
           client.Postcode__c= address.Post_Code__c ;
           bRenderDetail=false;
      
    }
    public List<SelectOption> getPopulatePostCodeSuburbList()
    {
        List<SelectOption> detailOptions = new List<SelectOption>();
         //detailOptions.add(new SelectOption('','-None-'));
        if(PostCodes!='')
        {
          for (Address_Details__c addr: [SELECT id, Suburb_Name__c, City_Name__c, State_Name__c, Post_Code__c FROM Address_Details__c WHERE Post_Code__c= :PostCodes])
          {
            string  details = addr.State_Name__c + '-' + addr.City_Name__c + '-' + addr.Suburb_Name__c + + '-' + addr.Post_Code__c;
           
             detailOptions.add( new SelectOption(addr.id , details));
           }
        }
        else if (Suburb!='')
       {
          for (Address_Details__c addr: [SELECT id, Suburb_Name__c, City_Name__c, State_Name__c, Post_Code__c FROM Address_Details__c WHERE Suburb_Name__c= :Suburb])
          {
             string details = addr.State_Name__c + '-' + addr.City_Name__c + '-' + addr.Suburb_Name__c + + '-' + addr.Post_Code__c;
           
             detailOptions.add( new SelectOption(addr.id , details));
          }
        }
        

        return detailOptions;

    }
   }




Test Class to Controller is


@isTest
 public class customPickListInVFDemoControllerTest
 {
    public static testmethod void testcustomPickListInVFDemoController()
    {
         
           // Create sample data.
           Client__c client = new Client__c ();
           client.Client_Family_Name__c = 'Testclientfamilyname';
           client.Given_Names__c = 'Testclientgivenname';
           client.Street_Address__c = '5 Osborne Avenue';
           client.Suburb__c = 'Springvale';
           client.Postcode__c = '3171';
           client.State__c = 'VIC';
           insert client;
  
    } 
}



And the Visual Force page code is 





Your help will be highly appreciated


Thanks
Nitesh