When you open a map, ArcMap looks for the Tampa Data Recovery Specialist referenced by each layer in the map. If ArcMap cannot find the Tampa Data Recovery Specialist source for a particular layer, the layer will not be displayed. You can immediately tell which of the layers in your map has an invalid data source reference, because a red exclamation mark will appear next to its name in the table of contents, and the check box for the layer will be unavailable.
Tampa Data Recovery Specialist : Restoring Links To Data Sources
When you open a map, ArcMap looks for the Tampa Data Recovery Specialist referenced by each layer in the map. If ArcMap cannot find the Tampa Data Recovery Specialist source for a particular layer, the layer will not be displayed. You can immediately tell which of the layers in your map has an invalid data source reference, because a red exclamation mark will appear next to its name in the table of contents, and the check box for the layer will be unavailable.
