Visualforce Page Error with Flow

Question

I have a flow in place for Opportunity creation from the Account. The flow requires some fields to be completed on the Account before the Opportunity can be created. I also want the user to be re-directed to the Opportunity Products page upon creation. In order to do this, I created a custom VF page and controller and utilized the Flow component in the VF page. However, when I try to save the VF page, I get the error:

Error: No variable named "AccountWebsite" in flow.

In the flow, the variable name listed in the Decision for requiring a website is called AccountWebsite, which is what I have in my VF page. The variable is a text variable and private. Does anyone know I am getting this error?

VF Page:

<apex:page standardController="Account" tabStyle="Account" Extensions="OpptyFlowController" recordSetVar="opportunities">
    <flow:interview name="Create_Opportunity_w_Parent_Fixed" finishLocation="{!OID}">
      <apex:param name="AccountId" value="{!Account.Id}"/>
      <apex:param name="AccountWebsite" value="{!Account.Website}"/>
      <apex:param name="AccountIndustry" value="{!Account.Industry}"/>
      <apex:param name="AccountCountry" value="{!Account.BillingCountry}"/>
      <apex:param name="AccountSubIndustry" value="{!Account.Sub_Industry__c}"/>
    </flow:interview>

</apex:page>

VF Controller:

public class OpptyFlowController {

  public ApexPages.StandardSetController stdControl{get; set;}
  public OpptyFlowController(ApexPages.StandardSetController controller) {
      stdControl = controller;
  }

  public Flow.Interview.Create_Opportunity_w_Parent_Fixed OppFlow { get; set; }

    public String getOppID() {
      if (OppFlow==null) return '';
      else return OppFlow.OpportunityId;
    }

  public PageReference getOID(){
    PageReference p = new PageReference('/p/opp/SelectSearch?addTo=' + getOppID() + '&retURL=%2F' + getOppID());
    p.setRedirect(true);
  return p;
  }

}

Flow:

Flow Error:

Answer 1

Make sure the variables in your flow are input or input/output. Also, make sure you have the same spelling, capitalization and format. Account_Website is not the same as accountwebsite.