TSCOR0231 Duplicate occurrence of property \ {0} \ in file descriptor \{1} \. This is only allowed for the file output parameter of this tool.

A file descriptor property occurred twice in a file input parameter of the tool "Merge Structured Files". This is not valid, as each property must occur only once to create the merged file.

Model Administrator Response:
Make sure that the target file descriptors of the tool's input parameters don't contain multiple references to the same property. Define an additional property or consider removing the value from the target file.