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Melissa SautterMelissa Sautter 

Error: <apex:page> is required and must be the outermost tag in the markup at line 1 column 1

This error is driving me MAD. What am I doing wrong? I have a very simple visualforce page:
<apex:page standardController=”Opportunity”>
<flow:interview name=”ClientDiscoveryInformation”>
<apex:param name=”var_CMS” value=”{!CMS_c}“/> 
<apex:param name=”var_UserManagementSys” value=”{!UserManagement_c}“/>
Why am I getting this error?
Please help!
Hi Melissa,
I created a flow name "my_Flow" and made the corressponding changes in you code accordingly...It is working fine....
<apex:Page standardController="Opportunity" extensions="exampleCon">
    <flow:interview name="my_Flow">
    <!--apex:param name="var_CMS" value="{!CMS_c}"/>
    <apex:param name="var_UserManagementSys" value="{!UserManagement_c}"/-->

I just added a controller where I defined the flow:
public with sharing class exampleCon {

    public exampleCon(ApexPages.StandardController controller) {


    Flow.Interview.my_Flow my_Flow{get; set;}

That's it...!!!

Please mark this as Helpful answer if it is.
janardhan mjanardhan m

​<apex:page standardController="Opportunity">

<flow:interview name="ClientDiscoveryInformation">

<apex:param name="var_CMS” value=”{!CMS_c}"/>

 <apex:param name="var_UserManagementSys" value="{!UserManagement_c}"/>


Try this..