I added a layer, but the <span style=”color: #333300;”> layer does not appear in the viewer in ArcMap.

I add a new layers, and the <span style=”color: #333300;”>layer has a red exclamation point next to it.

I added a layer into the viewer, and got the <span style=”color: #333300;”>error message “The following data source(s) you added are missing spatial reference information. This data can be drawn in ArcMap, but cannot be projected.”

I added two layers into the viewer that are supposed to overlay, but instead the <span style=”color: #333300;”>layers are very far apart in the viewer.

I added two layers into the viewer that are supposed to overlay, but the <span style=”color: #333300;”>layers appear to be slightly off.

I want to do some geoprocessing on the computers in Barclay classroom, but the <span style=”color: #333300;”>tools don’t appear to be available in ArcMap/ArcCatalog.