I used a "List File" component to find out if the file of interest is in the folder or not. If the file exist then I would like to read the file into Pipeline Pilot. The "List File" component will output the file path(directory and file name). Tried using global variable for the file path name and plugged in the global variable in the source field of the reader component. It did not work. Below are screenshots for clarification. Will appreciate any advice! Thank you!