Search Internal Error(Event Id 8305)

1.Search internal Error.

2. Claims Authentication Error.

　　

3. Check Application Pool for Secrity Token Service and SharePoint Web Service Root.

　　

4.Cause:

Open IIS manager and then expand sites and then expand SharePoint Web Services SecurityTokenServiceApplication virtual directory would not be present.

Solution:

To provision the Security Token Service Application

1 .Open Command prompt (run as administrator)

2. Navigate to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\bin

3. Execute:

stsadm -o provisionservice -action start  -servicetype "Microsoft.SharePoint.Administration.Claims.SPSecurityTokenService, Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" -servicename SecurityTokenService

4. Perform an IISRESET /NoForce

If you navigate back to IIS Manager expand sites and then expand SharePoint Web Services SecurityTokenServiceApplication should be available.