Monday, January 19, 2015

AppStudio gotcha

Recently, I upgraded the Granite State (NH) SharePoint Users Group's website from WSS 3 (MOSS 2007 generation) to SharePoint Foundation 2013.  The upgrade itself went as well as a 2007 to 2010 to 2013 upgrade could go, in general.

The only real "problem" I ran into was the Windows Phone app I wrote for the group years ago.  It was coming up with a 401 error trying to grab content from lists.asmx.  

I spent some time digging in the dirt, trying to resolve the 401, and hit a few common settings known to have an impact, but no good.  

Rather than struggle with it in my not so copious amounts of spare time, I decided to trash the old app, and build a new one with AppStudio.  

The app loads content from the #NHSPUG web site (http://granitestatesharepoint.org), mostly via RSS feeds.  I put a little extra effort into this.  Using AppStudio (http://appstudio.windows.com), I found a couple hours...  after that, I had not only a much prettier v3 of the Windows Phone app, but a Windows 8.1 (tablet style) publishing package as well.

One thing that caught me off guard though... the Gotcha:

The Windows 8.1 edition of the app wouldn't load the content from the users group website. 

With some debugging, I found that attempts to load the content were coming up with "Unable to connect to the remote server. hresult=   -2146233088".

Turns out the error had to do with the fact that I had not enabled Capability "Private Networks (Client & Server" in the Package.appxmanifest.   Ironically, the app works fine anywhere except where I was trying to test it:  on the same network as the content source server. So, to be fair, this is an environmental/configuration issue, not AppStudio, but it was worth mentioning, since my original assumption led me down that path. Maybe this will help someone else.


Oh... Here's the Windows Phone app:
http://www.windowsphone.com/s?appid=8c1ce3ea-9ffd-46a0-80bd-6b45d1019b32

And here's the Windows 8.1 (tablet style) app:
http://apps.microsoft.com/windows/app/granite-state-sharepoint-users/01ea0a83-f3af-4be6-abb0-268587072686


And here's my moment of shame recording the incident and solution in the forums:
https://social.msdn.microsoft.com/Forums/windowsapps/en-US/be7b02cf-25d0-4aa2-8850-e0e2dce21fd2/appstudio-windows-81-apps-not-loading-external-content?forum=wpappstudio&prof=required
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