Filtering to a range of integers with a row filter

This should be a ridiculously simple operation and I can’t figure out why it doesn’t work. I have a table with an integer column that I need to filter to a range of integers specified by two flow variables “start” and “end.” Console is showing this error: “Errors loading flow variables into node : Coding issue: Cannot invoke “String.getBytes(java.nio.charset.Charset)” because “” is null”
I created a very simple workflow with only the two columns that I then convert to integer flow variables with the Table Row to Variable node and feed them into the Row Filter node:


Not sure where to go from here. Do I need to do something with org.knime…IntCell ?

Hi @Bytecrawler,

I think you need to move the variables to the “IntCell” section.

Kind regards

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Thanks. @sforesti. At this point, I feel pretty dumb not trying that. I think I tried just about everything but that. At one point I put the values in the IntCell, but I think they were also in the datacell fields which probably was the issue.

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