Upload nightmares

When I allow users to upload test images I get this error:

The form field "/opt/coldfusionmx/runtime/servers/default/SERVER-INF/temp/wwwroot-tmp/neotmp63487.tmp" did not contain a file. The error occurred on line 71.
<!--------------------------------------------------->
Here is the code for that <CFFILE>:

<!---if user said yes to include images and the filefield is not empty upload now--->
<cfif SESSION.TestWiz.ImagesYN eq "Yes" and #FORM['QuestionIMG' & quesNum]# neq "">

<CFLOCK name="#This.Lock#" timeout="10" throwontimeout="yes" type="exclusive">

<CFFILE action="upload" destination="#ExpandPath("QuestImages")#"
nameconflict="makeunique" filefield="#FORM['QuestionIMG' & quesNum]#"
mode="777">
<!---now insert that image--->
<!---LINE 71---> <cfquery datasource="#REQUEST.db#">
INSERT INTO Images(Name,TestID,Type,Ext)
VALUES('#FILE.ServerFile#',#NewTest.TestID#,1,'#FILE.ClientFileExt#')
</cfquery>
.......and so on

<!---------------------------------------------------->

and when I view the source code to confirm the formfield name and existence here is what the form field looks like:


<cfform method="post" action="test3.cfm" enctype="multipart/form-data">
<input type="file" name="QuestionIMG1" >



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What could cause this error when there is a file in that field????

I don't think you need to specify the FORM scope in the fileField attribute, nor do I think this can be a variable. I think it just wants the name of the field. See what happens if you try this:

filefield="QuestionIMG#quesNum#"

I use the "form.fieldname" on all of my file uploads and it works fine. I suspect it has something to do with your dynamic field name not being properly resolved.