Thank-you but I am already trying to use this document to help figure out the set up and I am stuck.
I guess you are seeing the same issue as reported in the following KM article :
List File Import in Capture is not Working and Error "The import source file is null in the Import Context" is Occurring (Doc ID 1983731.1)
Yes I looked at that article first and then at the document it referenced.
I figured out the problem.
It was my file name in the .LST file. I had the whole directory but it just needed to be the file name. And then I also needed to set the username to a default value.