Hi! We are developing our Web Application with Dnn. We need to use a LinkedIn like an authentication provider. We have downloaded one from codeplex. It uses AOuth1 and it doesn't run ok. It appears the LinkedIn login screem, but Dnn returns in the logs:

UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.152 Safari/537.36

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:d3a0db17-18b2-4fd8-9ccd-70b266e5bca5

InnerException:Unexpected character encountered while parsing value: <. Path '', line 0, position 0.

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:Newtonsoft.Json.JsonTextReader.ParseValue

StackTrace:

Message:

DotNetNuke.Services.Exceptions.PageLoadException: Unexpected character encountered while parsing value: <. Path '', line 0, position 0. ---> Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: <. Path '', line 0, position 0.    at Newtonsoft.Json.JsonTextReader.ParseValue()    at Newtonsoft.Json.JsonTextReader.ReadInternal()    at Newtonsoft.Json.JsonTextReader.Read()    at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType(JsonReader reader, JsonContract contract, Boolean hasConverter)    at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)    at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)    at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)    at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)    at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)    at DotNetNuke.Common.Utilities.Json.Deserialize[T](String json)    at DotNetNuke.Services.Authentication.OAuth.OAuthClientBase.GetCurrentUser[TUserData]()    at DotNetNuke.Authentication.LinkedIn.Login.GetCurrentUser()    at DotNetNuke.Services.Authentication.OAuth.OAuthLoginBase.OnLoad(EventArgs e)    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Control.LoadRecursive()    at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)    --- End of inner exception stack trace ---

We have read that is better to use an AOuth2 because AOuth1 is unstable. We have a doubt, to repair AOuth1 or to migrate to AOuth2.

What is the best option? Why can't dnn read the first line of the JSon file?

Thanks.