I had seen few scenario where you perform any action on Analysis Services you get weird Error Message like some store is corrupted

Sample Error:

An error occurred when instantiating a metadata object from the file, '\\?\J:\Program Files\Microsoft SQL Server\MSAS10.SQLInst\OLAP\Data\dbDev.0.db\testdim.2.dim\DimensionPermission 1.0.perm.xml'.

http://blogs.msdn.com/b/karang/archive/2010/08/11/how-to-deal-with-corruption-in-analysis-services.aspx

[All the posts are AS - IS and doesn't carry any warranty]