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After upgrade from 4.0 to 4.5 framework, my styles and images have disappeared on my website remotely

Posted on 2014-12-24
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Last Modified: 2015-01-16
I have a windows web server 2008. I am using visual studio 2012. I upgraded my 4.0 asp.net web site to 4.5 framework. I updated the targetFramework="4.5" in the web.config.

I updated all my project's libraries to 4.5 framework in the properties. I ran a clean solution and then build solution. It looks great when run locally from VS2012.

I published to my webserver. Once I did, all my stylesheets are now ignored and my images are broken. They are still in the directories. They are still being referenced. No coding was changed. Just the framework.

if I look at my add/remove programs on the actual web server, it shows 4.5.1 framework, but no 4.0 framework; so it has to be using the 4.5 framework on the app pool.  In the apppool, the application is set to the 4.0 framework (which is the 4.5 framework).

So if anyone has any other ideas where I might be missing something that is causing it to ignore my styles, I'd appreciate any advice. Sorry, I can't provide a working example or send you to a web page to look at, so don't yell at me for not providing enough info. If I haven't I'm sorry. Just seeing if anyone has an "aha" moment.

thanks!
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Question by:BobCSD
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Assisted Solution

by:Kamal Khaleefa
Kamal Khaleefa earned 125 total points
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make sure your application pool identity runs under network service

and all images and css files are exist

and the path is pointing to them
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by:Ammar Gaffar
Ammar Gaffar earned 250 total points
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I faced similar issue before, but the reason wasn't framework version, I just moved my application to another PC (Development Machine).

The problem was caused by IIS installation/configuration, I missed to select Static Content check box under Common HTTP Features.

See attached picture, applicable for Windows 7
IIS.png
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Author Comment

by:BobCSD
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King2002,

I changed the app pool identity to network service and I get a 500 internal server error. I changed it back and at least get the website.

Ammar,

This is a windows web server 2008. I looked for the screenshot you sent under turn Windows Features on and off and my screens are entirely different than that screen shot.

however, this is NOT a new webserver. I have numerous websites running actively on it and they work fine. So changing something in the computer settings wouldn't be the answer, because the majority of the sites on the server are fine. It is just this one site that I tried to upgrade from 4.0 to 4.5. My other sites, including other 4.5 sites, are working fine.

thanks!
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by:Miguel Oz
Miguel Oz earned 125 total points
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Could you post the generated html for your image?
I am looking for any missing url information in the image. if that is the case you may have a mismatch on your assembly info.
Please create a new web app and add the same references and third party components of your app, then compare the config files of this new site with your affected site and check you have the same version info for all required assemblies.
Note: I have not used VS2012 before (jumped to VS2013 from VS2010) but  usually what I tend to do for all my apps  is create new projects and then add all files and references back to it.
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Assisted Solution

by:Ammar Gaffar
Ammar Gaffar earned 250 total points
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Are you using any third party components? if yes please list them.
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Author Comment

by:BobCSD
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Telerik Ajax suite of controls. But I am using them on other websites on this same server; as well as have always been using them on this website.
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Expert Comment

by:Miguel Oz
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As per my previous post
Could you post the generated html for your image?
Could you post your web.config file and a brand new VS2012 web.config file for version comparison?
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BobCSD earned 0 total points
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I found the problem, somehow this was added to my web.config during the upgrade process:

<staticContent>
      <mimeMap fileExtension=".mp4" mimeType="video/mp4" />
      <mimeMap fileExtension=".m4v" mimeType="video/m4v" />
    </staticContent>

Open in new window


I commented those out and it works fine again. Don't know why it broke all my styles though. Hopefully I'll never need them. thanks!
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Author Comment

by:BobCSD
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Okay, after re-reading Amar's post, maybe the "Static Content" checkbox is the issue. But I can't find that in my IIS. :(
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Expert Comment

by:Ammar Gaffar
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If you are hosting different sites in the same server and images are showing well then it is not because of this.
If not,  deploy simple site with only one page that contains image and then check
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Author Closing Comment

by:BobCSD
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It was these mime types in the web.config
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