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I am trying to project a shapefile which is in Geographic Coordinate System i.e. Geocentric Datum of Australia 1994 to a Projected coordinate system i.e. Map Grid of Australia Zone 55 using GDA 94 datum, also called as GDA 1994 MGA Zone 55 I think.
I have several shapefiles and this is the only one in a different coordinate system.
I tried to change the projection in Arc Catalog - right clicking the layer going into properties and selecting the projected coordinate system I want but when I actually add the data into ArcMap with other layers already there, I get an error saying:
Warning, inconsistent extent! One or more of the added layers has an extent that is not consistent with the associated spatial reference information. Re-projecting the data in such a layer may lead to unexpected behaviour
The layer gets added but it doesn't overlap other layers.