Could not load file or assembly 'Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies

Question

I had uploaded my application in IIS server(is working fine on local), and got the below error

Could not load file or assembly 'Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies.

my web.config looks like

<assemblyIdentity name="Microsoft.Owin.Security.OAuth" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />

my packages.config looks like

 <package id="Microsoft.Owin.Security" version="4.1.0" targetFramework="net472" />

and when I check the version of my dll, it shows the same ie 4.1.0, I don't know why I am getting the above error

Answer 1

Go to File Explorer navigate to the project bin folder. Delete all files in bin folder and then try Rebuilding the whole solution