TypeInitializationException - Client will not launch

EM Client Application Error message is as follows:-

eM Client (5.0.19406.0)
Windows: Microsoft Windows NT 5.1.2600 Service Pack 3, Framework: 2.0.50727.3649
The following error has occurred:
System.TypeInitializationException: The type initializer for ‘MailClient.Protocols.Gdata.GdataAccount’ threw an exception. —> System.BadImageFormatException: Could not load file or assembly ‘Google.Apis, Version=1.2.5074.25586, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The module was expected to contain an assembly manifest.
File name: ‘Google.Apis, Version=1.2.5074.25586, Culture=neutral, PublicKeyToken=null’
at MailClient.Protocols.Gdata.GdataAccount…cctor()

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].


can you try to reinstall eM Client completely - if possible then delete database also (that will remove all your non synchronized/backuped data).

Try using this installer for that http://www.emclient.com/dist/v5.0.194…