read.rdf error needs to be better

BoulderCodeHub / RWDataPlyr

R package to read and manipulate data from RiverWareTM

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read.rdf error needs to be better #86

Closed rabutler-usbr closed 6 years ago

rabutler-usbr commented 6 years ago

Currently if rdf file is not found it returns Error: file.exists(iFile) is not TRUE, which is not helpful if you are using one of the wrappers that calls it multiple times.