I am having a lot of problem publishing my SharePoint App, the 2013 version should be an easier version to process but I can't seem to make it work.

I'm using currently Visual Studio 2013 and this are the steps I took

Still I can't seem to properly publish my site, I kept having errors like this: enter image description here

Now I'm not sure which part of my step is wrong because I'm trying to deploy a newly created Sharepoint Site, and the localhost is fantastically working yet once I deploy I kept having this error

Edit* This is the error that was shown:

Could not load file or assembly 'Microsoft.Owin, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

which is weird because when I run it localhost it works just fine

  • Do what the screen says so we can view the error. Edit your web.config and add the customErrors node. That will then give us the actual error that you're having.
    – z.rahui
    Commented Nov 27, 2014 at 7:09
  • Hi I edited my post so you can see clearer to my problem Commented Nov 27, 2014 at 14:41

2 Answers 2


Follow this blog article to view full error. Once you get the error details, you will be able to trace further, what's wrong with your configuration or code.

  • Actually I don't quite get the error, I mean I tried publishing another web then I change the AppManifest for the link of my site and still same error Commented Nov 26, 2014 at 15:28

Make sure you set 'Copy Local' to True (do this in Visual Studio on your Web project) for assemblies that are required. This is also true for any Microsoft.SharePoint.* assemblies that you may be using.

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