When trying to generate a Manifest using a barcode list the Manifest Maker gets up to the "Select Output Directory" step and when the user presses next an error dialog pops up such as:
Title: IO error
Text: The file '/control1/file1_1' had an IO error
Note that files are found correctly in the Select Base Directory step. In the example given above the barcode list file gave a relative file path of 'control1/file1_1'.