Recently, I had problems to connect to a Adobe Version Cue CS4 server using Adobe Drive CS4 on a Windows 7 64bit machine. The connection worked for about two weeks, but from one day the Adobe Drive CS4 application froze every time I tried to establish a connection to the server (restarting the client and the server machine did not help).

On the client machine I found the following exception in the log file (C:\Users\win-user-name\AppData\Roaming\Adobe\CS4ServiceManager\logs\CS4ServiceManager.log). I assume that Adobe Drive CS4 uses the CS4ServiceManager application for network services.

2010/02/25 17:45:02,319 [ConnectionHandler-0] ERROR JDBCExceptionReporter - error in script file line: 68 out of memory
2010/02/25 17:45:02,326 [ConnectionHandler-0] ERROR PersistenceService - Error while initializing the database: null
java.lang.reflect.InvocationTargetException
	at com.adobe.drive.data.internal.persistence.PersistenceInitializer$1.run(PersistenceInitializer.java:60)
	at com.adobe.drive.data.internal.persistence.PersistenceService.run(PersistenceService.java:144)
	at com.adobe.drive.data.internal.persistence.PersistenceInitializer.initialize(PersistenceInitializer.java:67)
	at com.adobe.drive.data.internal.persistence.PersistenceService.startUpDatabase(PersistenceService.java:426)
	at com.adobe.drive.data.internal.persistence.PersistenceService.getConfiguration(PersistenceService.java:460)
	at com.adobe.drive.data.internal.persistence.PersistenceService.getSessionFactory(PersistenceService.java:445)
	at com.adobe.drive.data.internal.persistence.PersistenceService.createSession(PersistenceService.java:236)
	at com.adobe.drive.data.internal.persistence.PersistenceService.run(PersistenceService.java:139)
	at com.adobe.drive.data.internal.persistence.PersistenceService.runWithTransaction(PersistenceService.java:206)
	at com.adobe.drive.data.internal.persistence.PersistenceService.runWithTransaction(PersistenceService.java:199)
	at com.adobe.drive.ui.ncomm.handler.ExploreServersHandler.handle(ExploreServersHandler.java:96)
	at com.adobe.csi.internal.ncomm.InvokeHandler.handle(InvokeHandler.java:88)
	at com.adobe.versioncue.internal.nativecomm.host.ConnectionHandler.run(ConnectionHandler.java:136)
	at java.lang.Thread.run(Unknown Source)
Caused by: com.adobe.drive.data.internal.persistence.PersistenceException: Cannot open connection
	at com.adobe.drive.data.internal.persistence.PersistenceException.fromDBException(PersistenceException.java:32)
	at com.adobe.drive.data.persistence.factories.AssetFactory.setMountPointsAsDeactivated(AssetFactory.java:1034)
	at com.adobe.drive.data.model.asset.MountPointFactory.setMountPointsAsDeactivated(MountPointFactory.java:178)
	at com.adobe.drive.data.internal.persistence.PersistenceInitializer$1.run(PersistenceInitializer.java:56)
	... 13 more

The following workaround enables me to reconnect to the server:

1. Kill the processes “Adobe Drive CS4.exe” and “CS4ServiceManager.exe”.
2. Delete the CS4ServiceManager folder in C:\Users\win-user-name\AppData\Roaming\Adobe. This folder will be automatically recreated if you restart Adobe Drive CS4.
3. Restart Adobe Drive CS4 and connect to the Version Cue Server (You have to reenter your login credentials).

This workaround is also documented on Adobe’s help site “as a last resort” to fix connections problems to a Version Cue server:

[…] If none of these solutions work, delete the CS4ServiceManager folder. However, note that files that are not checked in may be deleted, and you will need to re-enter your login credentials when you start Adobe Drive. […]