Recheck the different TypeArguments:
Here a dictionary is needed. the inArguments we can create e.g with:
new InArgument(Of String)(“C:\Test\abc.txt”). but will be done for us when we fill out argument wizard
File Attachments:
In newer versions files are represented by ILocalResource which is derived e.g. to FileSystemLocalItem
For second unfortunately we cannot create manually and do need it to get returned e.g. File Exists - returning it for a single file