topic Error : If this component has output, there must be an input link to propagate the data - tFileFetch in Talend Studio

Error : If this component has output, there must be an input link to propagate the data - tFileFetch

Anonymous — Fri, 02 Jun 2017 14:12:41 GMT

I'm trying to apply some aggregation on the output of tFileFetch component but getting an error as mentioned in the subject after running the job. Below is the screenshot :

Any work around for this error ?

Re: Error : If this component has output, there must be an input link to propagate the data - tFileFetch

Anonymous — Fri, 02 Jun 2017 16:03:45 GMT

I think tFileFetch should have an input link. You can do something like,

tJavaFlex -->tFileFetch --> tAggregareRow

Hope it helps.

Re: Error : If this component has output, there must be an input link to propagate the data - tFileFetch

cterenzi — Fri, 02 Jun 2017 18:05:42 GMT

tFileFetch doesn't pass along the contents of the file it retrieves. To work on the file, connect tFileFetch to a file input component with a trigger link. Then connect the file input component to tAggregateRow.

Re: Error : If this component has output, there must be an input link to propagate the data - tFileFetch

Anonymous — Mon, 05 Jun 2017 07:22:27 GMT

Thank you guys for your reply.

@cterenzi I've tried setting trigger, but didn't get what component and which condition to use. Could you please elaborate ?

Re: Error : If this component has output, there must be an input link to propagate the data - tFileFetch

cterenzi — Mon, 05 Jun 2017 21:38:28 GMT

Right-click on tFileFetch, Trigger -> On SubJob OK, click on your file input component.

Re: Error : If this component has output, there must be an input link to propagate the data - tFileFetch

Anonymous — Tue, 06 Jun 2017 07:29:15 GMT

@cterenzi Thanks for the reply.

Do you mean tFileInputDelimited by file input component ? Or any other component ?

As tFileInputDelimited require file name/stream and schema to be defined, how can I achieve that ?

UPDATE :

After research for a while, I got this :

https://help.talend.com/?_ga=2.238976835.2110167692.1495695405-1775967762.1495003860#/reader/KxVIhxtXBBFymmkkWJ~O4Q/MTh6fnX7JcbQZzkp2J3l9w