autocomplete in sharepoint

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SharePoint2010

To implement the autocomplete in the sharepoint coluns i download the wsp from Google and deploy it in my site but after that i am getting the following error:


{ "error":{ "code":"',"message":{ "lang"::en-US","value":"No property\'Active\' exists in type '\\Microsoft.SharePoint.Linq.DataSecurityEntity'\'at position 27." } } }