Symptoms

Issue occurred where the following error was noted in the Event Viewer:

System.IO.IsolatedStorage.IsolatedStorageException: Unable to delete, directory not empty or does not exist.
at System.IO.IsolatedStorage.IsolatedStorageFile.DeleteDirectory(String dir)
at SourceCode.Forms.AppFramework.FileUtility.PurgeIsolatedFiles(TimeSpan purgeAge)
 

Diagnoses

Issue was identified and was related to this KB article:

http://community.k2.com/t5/tkb/articleprintpage/tkb-id/TKB_blackpearl/article-id/3039
 

Resolution

SmartForms 4.6.11 rollup code fix was applied to the issue environment which fixed the issue.