Server Error in '/' Application.

The remote server returned an error: (401) Unauthorized.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Net.WebException: The remote server returned an error: (401) Unauthorized.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[WebException: The remote server returned an error: (401) Unauthorized.]
   System.Net.HttpWebRequest.GetResponse() +1686
   Microsoft.IdentityModel.S2S.Protocols.OAuth2.OAuth2WebRequest.GetResponse() +284
   Microsoft.IdentityModel.S2S.Protocols.OAuth2.OAuth2S2SClient.Issue(String securityTokenServiceUrl, OAuth2AccessTokenRequest oauth2Request) +63

[RequestFailedException: Token request failed.]
   Microsoft.IdentityModel.S2S.Protocols.OAuth2.OAuth2S2SClient.Issue(String securityTokenServiceUrl, OAuth2AccessTokenRequest oauth2Request) +218
   PDFShareForms.Cloud.Web.TokenHelper.GetAppOnlyAccessToken(String targetPrincipalName, String targetHost, String targetRealm) +635
   PDFShareForms.Cloud.Web.Providers.AppOnlyClientContextProvider.GetAppOnlyClientContextForWeb(String webUrl) +166
   PDFShareForms.Cloud.Web.Providers.HttpContextClientContextProvider.getCurrentClientContext() +1006
   PDFShareForms.Cloud.Web.Providers.HttpContextClientContextProvider..ctor(HttpContextBase httpContext, ClientContext currentClientContext) +140
   PDFShareForms.Cloud.Web.Controllers.ProviderEnabledController.SetupClientAndDBContext(Boolean doNotAutoProvisionTenant) +1599
   PDFShareForms.Cloud.Web.Filters.PDFSFContextSetupAttribute.OnActionExecuting(ActionExecutingContext filterContext) +299
   System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +261
   System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +1034
   System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +1034
   System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +1034
   System.Web.Mvc.Async.AsyncInvocationWithFilters.InvokeActionMethodFilterAsynchronouslyRecursive(Int32 filterIndex) +1034
   System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__31(AsyncCallback asyncCallback, Object asyncState) +100
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +166
   System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters, AsyncCallback callback, Object state) +313
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__19(AsyncCallback asyncCallback, Object asyncState) +1151
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +166
   System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +463
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1c(AsyncCallback asyncCallback, Object asyncState, ExecuteCoreState innerState) +42
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +73
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +166
   System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +860
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +166
   System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +711
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__4(AsyncCallback asyncCallback, Object asyncState, ProcessRequestState innerState) +93
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +73
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +166
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +522
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +1020
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4069.0