Could not load file or assembly 'Sonarr.Host'

[venkatvy102]

Sonarr version (exact version): 3.0.2.572
Mono version (if Sonarr is not running on Windows):
OS: Windows 10 Pro
Debug logs:
Description of issue: Unable to start windows service. When starting the service i get the following error.

Unhandled Exception: System.BadImageFormatException: Could not load file or assembly 'Sonarr.Host, Version=3.0.2.572, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The module was expected to contain an assembly manifest.
   at NzbDrone.Console.ConsoleApp.Main(String[] args)

From Event Viewer

Faulting application name: Sonarr.Console.exe, version: 3.0.2.572, time stamp: 0x5d4da887
Faulting module name: KERNELBASE.dll, version: 10.0.18362.239, time stamp: 0xe665f337
Exception code: 0xe0434352
Fault offset: 0x00113442
Faulting process id: 0x8c0
Faulting application start time: 0x01d551621eeeea9e
Faulting application path: C:\ProgramData\Sonarr\bin\Sonarr.Console.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 5cd6f2d3-e631-491b-b943-9db9b547d2e7
Faulting package full name:
Faulting package-relative application ID:

[markus101]

Did your anti-virus remove that file?
Or possibly a failed update (check the update logs)?

Grabbing the latest release of the v3 beta from sonarr.tv is probably your best bet to solve it ASAP.

[venkatvy102]

File was there but probably the wrong version. Took backup and uninstalled completely, then reinstalled. Restored backup configs and db files and its back running again. After reinstall i had to change the service properties to use local account for it to detect some folder paths.