Skip to main content

Value cannot be null when trying to get WebAPI Token using Postman

Well,

Server Error in '/' Application.

Value cannot be null.
Parameter name: value

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.ArgumentNullException: Value cannot be null.
Parameter name: value

Source Error:
Line 431:        {
Line 432:            AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
Line 433:            var identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
Line 434:            AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, identity);
Line 435:
It happened because when i created the user using Configuration Seed (i'm using EF Code First), i'm not filled the Security Stamp that is why the error occured because when the Security Stamp is null, it can not generate Claims Identity

After i change the Seed to fill the Security Stamp then it works like a charm :D

until then
Labels:

Comments

Post a Comment

Popular posts from this blog

Crystal Report 2010 - Failed to load database information

"Failed to load database information" error when i try deploy my program with CR 2010 using TTX file as report definition this is because there is missing .dll, call "CRDB_FIELDDEF.DLL"..u need to manually copy the file to "C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86" folder then the report is loading again it said that TTX is old tech but i'm still using it because i don't need to connect the report to any DB, but until i found new one to replace :D check this link to read it [EDIT 25 Jan 2011] i think i'll using ADO.NET Dataset next time :D until then
2 comments
Read more

Resolve Collation error in SQL Server

i often get this error when trying to JOIN some table Cannot resolve the collation conflict between "SQL_Latin1_General_CP850_CI_AS" and "SQL_Latin1_General_CP1_CI_AS" in the equal to operation. u need to use COLLATION when performing the JOIN, something like this SELECT field1 FROM table1 INNER JOIN table2 ON table1.field3 COLLATE DATABASE_DEFAULT = table2.field4 COLLATE DATABASE_DEFAULT i found this when trying to JOIN, maybe it affect other areas..until i found one see u
Post a Comment
Read more

Session timeout problem in IIS

Hi, Long time no post, i will try to post again since i came out searching a typical solution over and over again :D Now i'm gonna post about session. Since i got this from other link so here it is So I started looking into the IIS settings and came to know that i missed two things to change : Application pool’s Idle Time-out (minutes) Session state  – State server’s Time-out (seconds) Once I have changed above settings than after Session timeout worked. So after that I have made one checklist that can help us to validate Session timeout settings, here i am sharing it with you as well so that you will also get some benefits from it : Application Pool  – Advanced Settings Menu – Process Model – Idle Time-out (minutes) Sites –  Session State  – Cookie Settings – Time-out (minutes) If you are using  State Server  or  SQL Server  to manage your session (instead of InProcess), Here is the steps to follow :    ...
Post a Comment
Read more