Finding broken data sources in your map document and layer files
Broken data sources are a very common problem with map document files. You can use arcpy.mapping to identify data sources that have moved, been deleted, or changed in their format.
Getting ready
In ArcMap, a broken data connection is signified by a red exclamation point just before the layer name. This is illustrated in the following screenshot. The ListBrokenDataSources() function in arcpy.mapping returns a list of layer objects from a map document or layer file that have a broken data connection:
How to do it…
Follow these steps to learn how to find broken data sources in a map document ...
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