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AdminApp: After upgrade an error Default.AuthSettings can be seen

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Article Number000108826
EnvironmentProduct: Sitefinity
Version: 12.x, 13.x
OS: All supported OS versions
Database: All supported Microsoft SQL Server versions
Question/Problem Description

With the new interface turned on, errors appear in the console on every page in the back end.

Steps to Reproduce
Clarifying Information
Error MessageIn the browser's console:'sitefinity') 500 (Internal Server Error)
Http failure response for'sitefinity'): 500 Internal Server Error

In the Error.log:
MM/DD/YY hh:mm:ss
Type : System.IO.FileNotFoundException, mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089
Message : Could not load file or assembly 'System.Threading.Tasks, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
Source : Microsoft.OData.Core
Help link :
FileName : System.Threading.Tasks, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
FusionLog :
Data : System.Collections.ListDictionaryInternal
Defect/Enhancement Number
There is a binding redirect for System.Threading.Tasks in the web.config pointing to a version that doesn't exist in the project.
   <assemblyIdentity name="System.Threading.Tasks" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
   <bindingRedirect oldVersion="" newVersion="" />

From the web.config, remove the binding redirect specified in the Error message.
Last Modified Date5/21/2020 11:11 AM