@shong: thanks for your reply.

I had indeed worked out that I needed to create the XML file first before using the tAdvancedFileOutputXML task with the "append" option checked. I've now got the main job working by creating a skeleton XML file by hand prior to running the job but obviously having to manually create this skeleton file defeats the purpose of using a tool like Talend. Is there any way to include a task somewhere in order to do that? Topic #5975 that you mention doesn't say anything about it.

Following the details from this other post, I changed the structure to include a group element. However, I still get the following exception on this component when I run my job:

Exception in component tAdvancedFileOutputXML_1
java.lang.Exception: can not find the file:/home/bruno/TOS-All-r31371-V3.2.1/workspace/out.xml
    at filetransfer.filetransferjob_0_1.FileTransferJob.tFileList_1Process(FileTransferJob.java:2507)

Presumably, because I append to the file, it complains when the file doesn't exist. As I already have a tPrejob to clean up logs on startup, I tried to add a simple task to theat pre-job with a tFixedFlowInput and another tAdvancedFileOutputXML where the "append" option is not checked, in order to create the file's structure but that doesn't work either. Now, it only tells me that I have errors in both tAdvancedFileOutputXML but it doesn't give me any meaningful error message, nor are the errors listed in the "Problems" tab.

I attached a number of screen shots that show: what the overall job looks like and the XML tree configuration screen of both tAdvancedFileOutputXML.

@brunogirin
The 'append' option is avaliable on tAdvancedFileOutputXML component. We generally use tAdvancedFileOutputXML instead of tFileOutputXML to output a xml file.

Best regards

          shong

It's always the same problem when using an "iterate" link.

You have to create the file at the beginnint of the job :
tPrejob --onComponentOk--> tGenerateRow --Output--> tFileOutputXML

Then on the other component tFileOutputXML, check the "append" box.

This is the way I use, because it works exactly as if there was no "iterate" link in the process. Checking the "append" box on the existing component could be enough, but creating the file at the beginning of the job overwrites the file of the last execution, which is easier when developping.