Q:

how to add flow value in param tag?

As i am trying to convert a flow in vf page,but when i convert the flow in vf page it is giving error like pages/sfdcflow.page: No variable named "Completed" in flow.
Flow i create to simply delete the records from list view page in lightning.
this is my flow :--
and then add a fast lookup for take the all ids in a array

and for this this the sobject collection variable that i create for this:-
 
this is the vf page that  i create for it--
<apex:page showHeader="true" sidebar="true" standardController="SFDC_Project__c" recordSetVar="SFDC Projects">
  <flow:interview name="SFDC_Del" >
      <apex:param name="Completed" value="{!SFDC_Project__c.id}" />
  </flow:interview>

</apex:page>

but it is always giving the error pages/sfdcflow.page: No variable named  "Completed"  i also tried like this:-
<apex:param name="sfdcCollect2" value="{!SFDC_Project__c.id}" /> 

but again giving error like no variable named  "sfdcCollect2" can i get some help that how can i set the variable for this. Thanks!

A:

@sonam use like this its working
<apex:page showHeader="true" sidebar="true" 
  standardController="SFDC_Project__c" recordSetVar="SFDC Projects">
    <flow:interview name="SFDC_Del" >
    <apex:param name="sfdcCollect2" value="{!SFDC Projects}" />
   </flow:interview>

  </apex:page>

