Set writer output folder from attribute value Hello FME's geeks !I am looking for writing outputs as shapefile to a path that is derived from the concatenation of an input parameters, a given string and a timestamp.In other words, the path should look like $(input_parameter1)/$(string)-$(TimeStamp)In my case,The input parameter is a folder given by user (Main_Input_Folder)The string is the basename of an input file given by the user without extention (eg : C:\inputFolder\myfile.shp => basename = myfile)For now, I am able to concatenate the input parameter and the Timestamp (creating a Python scripted private parameter for creating the string) giving something like $(input_parameter1)/$(TimeStamp) and use it to the "Destination Esri Shapefile Folder" parameter : However, to add the basename, I created another Python scripted private parameter to extract the basename (used code below) but when I try to add it to the "Destination Esri Shapefile Folder" parameter I get this error : Undefined macro `AOI_basebame' dereferenced in fi
