In SAS Enterprise Miner, diagrams might stop working as expected. Symptoms might include behaviors such as the following:

• Selecting File ► Save Diagram "name" As... fails with the following message when you choose XML:  

• Attempting to create a model package fails even after following the server-error workaround from SAS KB0036530: "Creating a model package (SPK file) in SAS^® Enterprise Miner(tm)." 
• Various errors occur when you attempt to add a new node to a diagram.

These symptoms often indicate that your diagram is corrupted. There is no test that can confirm whether a diagram is corrupted. The symptoms might occur because of another problem. Diagram corruption can occur when any of these (or other) conditions occur:

• The file system runs out of disk space.
• The SAS server stops unexpectedly.
• The server machine reboots unexpectedly.
• The Enterprise Miner client closes abnormally.
• The Enterprise Miner client machine shuts down unexpectedly.

There are no tools for uncorrupting a diagram. There are two common workarounds.

• Create a new diagram and use new nodes to rebuild the flow. Do not copy and paste nodes from the old diagram, because this practice might corrupt the new diagram. Creating a new diagram that is small does not take much time. Even re-creating large diagrams might be less time-consuming than trying to restore a diagram from a backup.
• Contact your IT department about whether they can restore the file system that was in place before the diagram became corrupted.

You can usually avoid diagram-corruption inconveniences when you follow these best practices:

• Frequently, create model packages of important diagrams so that you can easily re-create important work. See the following resources:
• SAS Enterprise Miner shortcut: 5 things a model package can do for you
• SAS KB0036529: "Using SAS^® Enterprise Miner(tm) model package SPK files to view results and logs, and to re-create diagrams for further analysis"
• Routinely delete nodes and diagrams that are no longer needed. Deleting these items reduces the space requirement.
• Avoid conditions that can lead to diagram corruption.

Operating System and Release Information