I just uninstalled my 64bit Consumer Preview and installed the 32bit but again the same error...
An exception of type 'System.BadImageFormatException' occurred but was not handled in user code
Additional information: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
If someone came up with some kind of solution so make local database in Windows 8 metro style app please contact me.