SSIS ForEach enumeration works in Visual Studio, loops through the file folder and inserts data into db table.

After deployment to SSISDB, I get foreach loop container warning: `The for each file enumerator is empty. The For Each enumerator did not find any files that matched the file pattern, or the specified directory was empty`. I am inserting from .csv flat files and have that indicated in the for each loop container. Any suggestions?