Good day,
The problem is simply caused by an incorrectly typed file path. The error message isn't clear about this and describes some temporary file name (based on today's date and time) which is confusing. Perhaps the importFusionData function could be made more robust by checking for the file's existence at the beginning of the function. For example,
if(file.exists(filename))
# Do fusion file import.
else
stop("Could not find the specified fusion file.")
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Dario Strbenac
University of Sydney
Camperdown NSW 2050
Australia