As the next step to what I did in this previous question, I would like to add a buffer to a polyline, with 5 meters on either side.
I tried adding buffer to two versions of the line, one in geographic WGS 1984, and the other in projected UTM 16N, but in either case I get the error "spatial reference does not match data frame".
Does ArcGIS have specific requirements as to whether I need to have the project/data frame in geographical vs. projected coordinate system? And how do I alleviate this problem? Thanks.
P.S. I am running ArcMap 10 in Windows.