I've a simple model to iterate through a feature dataset and rename all the feature classes, adding "geo." before the original filenames. The output of Rename tool looks like "geo.%Name%", but running the model i get Error 999999 message, i think it's because of the point after "geo", so i'd like to ask if there is a way to keep the point in the filename, but for the tool to ignore it and run the command?
You think that it is because of the point after "geo" but have you tested with and without to be certain? If so, then I suspect that you are violating a geodatabase naming convention and may need to stop doing so.– PolyGeo ♦Sep 8, 2016 at 9:30
The error is caused by the point, that is an invalid character to use in a feature class name. More information about Defining feature class properties including naming conventions is discussed on this page.
If you want to separate geo from name then use an underscore.
You're right, looks like there's no way to put a point in the name of feature class, so i'll just use underscore instead of point, as you suggested. Thank you!– User6819Sep 8, 2016 at 10:24