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HomeHomeDNN Open Source...DNN Open Source...Provider and Extension ForumsProvider and Extension ForumsAuthenticationAuthenticationFacebook Authentication ProblemFacebook Authentication Problem
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8/25/2015 6:08 PM
 
Peter groset


Joined: 8/25/2015
Posts: 1

Hi, I'm attempting to get Facebook Authentication working. Google and Twitter are working fine.

When a user attempts to login with Facebook, they receive the following error message:

A critical error has occurred. Please check the Event Viewer for further details.

The event log shows:

AbsoluteURL:/Default.aspx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:6b4b1590-9adc-4b79-a11e-2159817047b8

AssemblyVersion:7.4.0

PortalId:0

UserId:-1

TabId:100

RawUrl:/Register?code=AQD9hbtbnvs1wn0qqJOEn1JIatD-NKSZ6S9xommhoL8oXZXGXVUBLrn-IUESytl0upyN5VhuZyj__WoWbr4-p-Q0ECBJ7c34vRAIlC-dFb-bPzgKYjq8mkJ9-GQVXT00iWhEb7g7gOtzSFMMRPssTPoRnfbDl_MJ0FEOSR8Ope044YqcJqMgEY2CVDWwaP_Aw0En4Gwk_XjRrBGjrOE9m7CNGtvoCtW9qGNFYFMasIhM

Referrer:https://www.facebook.com/

UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36

ExceptionHash:wASc0oVix1/VH1wVyXMcHg==

Message:Value cannot be null. Parameter name: value

StackTrace:



 


InnerMessage:Value cannot be null. Parameter name: value


InnerStackTrace:


   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.Facebook.Login.GetCurrentUser()
   at DotNetNuke.Services.Authentication.OAuth.OAuthLoginBase. (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)


 


I've tried playing with all sorts of settings on Facebook. I have the callback url's setup in facebook. It looks like the website is getting no databack to deserialize that json object. Any help would be much appreciated, thanks.


Peter

										

									

										 
									

								

							

						

					

						
					

						

							

								

									

										New Post

											1/14/2016 1:46 PM
										
 
									

								

							

						

					

						

							

								

									

										Brett Lawson
									

								

							

								

							

								
Joined: 1/13/2016

									Posts: 3
								

							

						

							

								

									

										
									

										

											

												

													

														
													

												

											

										

									

								

							

								

									

										

											
 

I'm getting the same error, were you able to get around it?
										

									

										 
									

								

							

						

					

						
					

						

							

								

									

										New Post

											4/18/2016 10:59 AM
										
 
									

								

							

						

					

						

							

								

									

										robwadams
									

								

							

								
Joined: 4/2/2012

									Posts: 1
								

							

						

							

								

									

										
									

										

											

												

													

														
													

												

											

										

									

								

							

								

									

										

											I am also stuck with this, has there been any resolution posted yet?
										

									

										 
									

								

							

						

					

						
					

						

							

								

									

										New Post

											12/4/2016 6:57 PM
										
 
									

								

							

						

					

						

							

								

									

										Robert Havens
									

								

							

								
TekZones.com
Joined: 2/2/2004

									Posts: 32
								

							

						

							

								

									

										
									

										

											

												

													

														
													

												

											

										

									

								

							

								

									

										

											Has anyone gotten this fixed?

I am having the exact same issue.

DNN 8.0.4

As far as I can tell all of the FB App settings are correct.

I have the site set to Private for registration so not sure if that makes a difference. I will try verified to see if that makes any difference.
I also have the unique email address and use email as username.

Thanks,
Robert

										

									

										 
									

								

							

						

					

				

			

				

					

						

							

								

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HomeHomeDNN Open Source...DNN Open Source...Provider and Extension ForumsProvider and Extension ForumsAuthenticationAuthenticationFacebook Authentication ProblemFacebook Authentication Problem

					

						

							
    

							

						

					

						
					

						

					

				

			

				

			

		

	









	

	
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