You have 3 string controls to define the filenames. By default, they all say ,lvm. Are you remembering to fill in a file name for each of those before running your VI? If you are trying to open the same filename in two different places, I wouldn't be suprised if you got error 8.
Also, when I opened up the Express VI's, they have a filename of C:\Users\YourUserName\Documents\LabVIEW Data\<Not A Path>.lvm. Now that may be just a remnant of the original values of the VI where the strings only had .lvm. But how did <Not a Path> get in there if you didn't try to run it that way before saving?
Now I know a file name that is <Not A Path>.lvm will fail and give that error 1 because the < and > symbols are not valid characters for filenames.
Why are you using a string control for a file name rather than a file path control?
