Cfreturn variable is not recognized when outputing content

Question

I have a page that i wish to display total invoices paid to a particular contractor. This Page is Runnign CF9. I'm using a CFC page to write my queries and a action page to display the output via a search box from a search page. Whenever i input the invoice id, coldfusion throws the error: Variable RECENT_INVOICE is undefined"  Am i missing something? my syntax is written below:
<!---CFC PAGE--->
<cfcomponent>
<cffunction name="getinvoice" access="public" returntype="query">
<cfquery name="recent_invoice" datasource="w9">
SELECT invoice.*, project.*, bid.*, CONCAT(w9.w9fname,' ', w9.w9lname,'  ', w9.w9businessname) AS Contractor, w9.*
FROM invoice, project, bid, w9
WHERE invid = #form.invid#
AND INVOICE.invcontractor = W9.w9ID
AND INVOICE.invproject = PROJECT.proID
AND INVOICE.invproject = BID.bidproject
AND INVOICE.invcontractor = BID.bidcontractor
</cfquery>
<cfreturn recent_invoice>
    </cffunction>
</cfcomponent>
<!---Display page that show the invoked query--->
<cfinvoke
  component="invoice.componets.test"
  method="getinvoice"
  returnvariable="recent_invoice">
<!--- CFC Query --->
</cfinvoke>
<!---OUTPUT Items Below--->
<cfoutput>#recent_invoice.invdate# - #recent_invoice.invjob1# - #recent_invoice.invamt1#</cfoutput>

Answer 1

Looks like you are referencing a form field in your query; form.invid.  You are not submitting a form, you are calling a cfc so you probably want to add an argument to your function and pass the value when you call it.  Change like so:
<!---CFC PAGE--->
<cfcomponent>
<cffunction name="getinvoice" access="public" returntype="query">
<cfargument name="invid" type="numeric" required="true" />
<cfquery name="recent_invoice" datasource="w9">
SELECT invoice.*, project.*, bid.*, CONCAT(w9.w9fname,' ', w9.w9lname,'  ', w9.w9businessname) AS Contractor, w9.*
FROM invoice, project, bid, w9
WHERE invid = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.invid#" />
AND INVOICE.invcontractor = W9.w9ID
AND INVOICE.invproject = PROJECT.proID
AND INVOICE.invproject = BID.bidproject
AND INVOICE.invcontractor = BID.bidcontractor
</cfquery>
<cfreturn recent_invoice>
</cffunction>
</cfcomponent>
<!---Display page that show the invoked query--->
<cfinvoke
  component="invoice.componets.test"
  method="getinvoice"
  invid="#yourInvoiceNumber#"
  returnvariable="recent_invoice">
<!--- CFC Query --->
</cfinvoke>