# AX 2012 R2 Error

**URL:** <https://www.dynamicsuser.net/t/ax-2012-r2-error/45640>\
**Category:** Developer Forum\
**Created:** [April 30, 2013, 11:16am UTC](https://www.dynamicsuser.net/t/ax-2012-r2-error/45640 "2013-04-30T11:16:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![AhmadSaify](https://avatars.discourse-cdn.com/v4/letter/a/7feea3/32.png) [@AhmadSaify](https://www.dynamicsuser.net/u/AhmadSaify)\
**Post date:** [April 30, 2013, 11:16am UTC](https://www.dynamicsuser.net/t/ax-2012-r2-error/45640/1 "2013-04-30T11:16:52Z")

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Hi all,

I did an upgrade for Dynamics AX 2012 to R2, after i finished, everything was working fine else some menu items and form when i open it, i get this error message :

**_Could not load file or assembly ‘Microsoft.Dynamics.AX.Framework.Client.Controls, Version=6.0.0.0, 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)_**

anyone can help me please!!

Regards,

Ahmad Saify

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**Author:** ![miraclerah](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@miraclerah](https://www.dynamicsuser.net/u/miraclerah)\
**Post date:** [April 30, 2013, 11:51am UTC](https://www.dynamicsuser.net/t/ax-2012-r2-error/45640/2 "2013-04-30T11:51:33Z")

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either it may be problem of service or licence

thanks

Rahul

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<div class="post-metadata">

**Author:** ![AhmadSaify](https://avatars.discourse-cdn.com/v4/letter/a/7feea3/32.png) [@AhmadSaify](https://www.dynamicsuser.net/u/AhmadSaify)\
**Post date:** [April 30, 2013, 12:34pm UTC](https://www.dynamicsuser.net/t/ax-2012-r2-error/45640/3 "2013-04-30T12:34:21Z")

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hmmmm okay thank you rahul for reply 🙂

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<div class="post-metadata">

**Author:** ![AhmadSaify](https://avatars.discourse-cdn.com/v4/letter/a/7feea3/32.png) [@AhmadSaify](https://www.dynamicsuser.net/u/AhmadSaify)\
**Post date:** [April 30, 2013, 1:48pm UTC](https://www.dynamicsuser.net/t/ax-2012-r2-error/45640/4 "2013-04-30T13:48:19Z")

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anyone have any idea!!!