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When trying to preview a map service in ArcCatalog, the image is blank; however, the coordinate values appear in the bottom right corner as the mouse cursor is moved around. This article provides a solution, due to a problem with the virtual directories, to the blank map preview.
ArcCatalog cannot get the map image from the virtual directory that is associated with either the output directory or cache directory.
Before proceeding, ensure that the problem is related to the virtual directory by following the instructions provided below:
1. Stop the map service through ArcCatalog or ArcGIS Server Manager.
2. Modify the output directory for the map service to 'none'.
Make this modification through ArcCatalog by going to Map Service Properties > Paramters tab, or through ArcGIS Server Manager by clicking on Edit in the Services panel and then click on Parameters in the left panel.
There are multiple areas where permissions need to be checked. The following instructions assume that ArcGIS Server directories are in the default location, such as C:\arcgisserver, and the associated virutal directories are in the default location in IIS, such as Default Web Site.
This shows a directory listing of the output virtual directory; however, it is possible that no files are listed since the ArcGIS Server continuously cleans the output directory.