Hi ther

Have just tried installing the package and got the following error message.

Could not upload file
System.Exception: Error unpacking extension... ---> System.IO.FileLoadException: Could not load file or assembly 'ICSharpCode.SharpZipLib, Version=0.85.5.452, Culture=neutral, PublicKeyToken=1b03e6acf1164f73' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) File name: 'ICSharpCode.SharpZipLib, Version=0.85.5.452, Culture=neutral, PublicKeyToken=1b03e6acf1164f73' at umbraco.cms.businesslogic.packager.Installer.unPack(String ZipName) at umbraco.cms.businesslogic.packager.Installer.Import(String InputFile) WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. --- End of inner exception stack trace --- at umbraco.cms.businesslogic.packager.Installer.Import(String InputFile) at umbraco.presentation.developer.packages.Installer.uploadFile(Object sender, EventArgs e)

The site is running version 4.5.2 

Any ideas 

Thanks

Nigel