Near the start of my workflow designed for the webportal is a File Upload Widget.
The widget fails when run on the web portal. The progress bar sits at 0 for a while, then races to 100 and for a second looks like the upload succeeded, but then quickly get a red error message “Upload Failed”.
I’m using AP 4.4.2 and server 4.13.4
When I check the logs, I see the following error:
2022-04-07 00:26:50,065 : ERROR : KNIME-Worker-3822-Flexible File Input 1 0:718 : c61385c9-771b-4aad-b299-ccbb26af3274 : FileDownloadWidgetNodeModel : File Download Widget : 0:1421:0:1352:0:1333 : Could not get output resource URL: Variable “tableFileKnime” does not denote an existing file: knime://knime.workflow/data/knimetemp-57285ae787524fae/RegressionCoefficients.table
The error curiously references a File Download Widget node very far downstream of the File Upload Widget, contained in a component.
This looks similar to:
AP-12111: Configuration of Call Workflow (Table Based) node fails, if wf on server contains File Download node in wrapped metanode
(which was fixed in 4.2)
See Calling workflows which contain "File Download" nodes
Also the upload fails when working from home, but not when on prem.
I can’t share the workflow, but might be able to share the components if needed.
Also, can anyone suggest a workaround?