I am getting this error when trying to use caching for app fabric. I was following the example given in this article.
ErrorCode:SubStatus:Error in client configuration file.
"An error occurred creating the configuration section handler for dataCacheClient: Could not load file or assembly 'Microsoft.ApplicationServer.Caching.Core' or one of its dependencies. The system cannot find the file specified. (C:\Projects\TestResults\test 2012-04-30 14_51_12\Out\Tests.DLL.config line 5)" here is the text from line 5: " "
It turns out that this error was caused by the referencing of two different versions of the Windows Azure SDK. I ended up using the nuget reference to ServerAppFabric.Client from all my projects and this issue was resolved.