Error Message:
filename filename Could not expand second filename so as to match first
Explanation:
The Fc command expanded the wildcards in the second file you specified, but was unable to find a file on the path you specified to use. In other words, no filenames on the path satisfied the wildcards. Therefore, the Fc command did not compare any files.
User Action:
Retry the command, either using a different path or a different set of wildcards in the second file specification parameter.