URI explanation


Not sure about a concept in Knime named URI. I need to move some files around to support a workflow. Using the list files nodes and then copy/move file nodes I get an error. The dialog cannot be opened for the following reason: No column in spec compatible to ‘URIDataValue’. Not sure what URI is? Looking at community it mentions going to documentation but that talks about URL formats. Can someone guide me?


Hi @Jeff,
URI is a “Uniform Resource Identifier” and points to a resource, e.g. a file or a website. The List Files node outputs an URL, which is a “Uniform Resource Locator”, which is a special type of URI. This URL is stored in a string column, so you will need to convert that to an URI first using a String to URI node. After that, the Copy/Move Files node should allow you to open the dialog just fine.
Kind regards


Hi @Jeff

I built a workflow that demonstrates the use of URI and URL and the like

Then there are examples how to copy (or move) files using URI

1 Like

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.