Hello fellow swmm users.

It's been a while since I last posted an inquiry, so I thought I'd throw out a new one. I've been trying to use the combine block to combine two interface files. Since that was unsuccessful, I tried to extract information for a single node from one of the files. After failing again, I tried to convert an interface file to ascii format. All three attempts generated the following error message:

ERROR. End-of-file reached unexpectedly while reading header information on interface file on unit no. 10. File name = JIN.UF
Check to see that this file is the proper interface file. Run stopped.

Does anyone have any hints as to what will make the combine block work?

Sincerely,
Bill Walker
hausbrau@erols.com