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Created attachment 8381 [details]
Log files from Visual Studio
The Android SDK Tools update to version 23.0.4 breaks the Xamarin Android designer once more (as previously in bug 18683).
For users who have upgrade the Android SDK Tools to version 23.0.4, the designer will not be able to open `.axml` files. The designer will instead display an error:
> Disconnected from layout renderer
> Please close and open the file again.
I believe a fix for this has already been committed to the development branches, but the fix has not yet been released.
1. Uninstall the Android SDK Tools version 23.0.4 from the Android SDK Manager.
2. Unzip the older Android SDK Tools version 23.0.2  into the Android SDK directory. It should create exactly 1 folder named "tools" in the top level of the Android SDK directory.
>  http://dl-ssl.google.com/android/repository/tools_r23.0.2-windows.zip
See also the first post in this old forum thread for a few more details about locating the Android SDK directory:
## Additional version information
Microsoft Visual Studio Professional 2013
Version 12.0.30723.00 Update 3
Microsoft .NET Framework
Affects all current Xamarin versions, including the current alpha version:
Xamarin 4.0.381.0 (cda47a4f438cef077d8f5c0eb79fb5df835c6b99)
Xamarin.Android 18.104.22.168 (af4cb1e950dcbc00c3d2c365b24efc1b9fb93671)
Xamarin.iOS 22.214.171.124 (13fec5ef6bd1d2992ae58cc5147d0e3f988792ca)
The download link for the Mac version of the Android SDK Tools version 23.0.2
*** Bug 23740 has been marked as a duplicate of this bug. ***
When updating to 23.0.5 VisualStudio 2013 crashes before it fully opens. Xamarin Studio and VisualStudio 2012 can open but .axml files show the aforementioned error message.
*** Bug 23831 has been marked as a duplicate of this bug. ***
We have checked this issue and designer is opening correctly without showing rendering error.
All VS/Win and MAC
Xamarin Studio Version 5.5.2 (build 0)
Git revision: a5887be38215a6cdd3f349e102ef82a1c4f950a4
Xamarin addins: 069ddd29bb70a42238142eee9bac21a5e4b2f9f9
Xamarin 126.96.36.199 (9e6752d7279ca6b20eb4f728e50cdfaf4207da61)
Xamarin.Android 188.8.131.52 (c0168255507205e3f50aba560ccf971c41a682ff)
Visual Studio plugin to enable development for Xamarin.Android.
Xamarin.iOS 184.108.40.206 (6049af67092da016508817b895787e66f70f39ad)
Visual Studio extension to enable development for Xamarin.iOS.
XA 220.127.116.11 (MAC)
As per comment 6 closing this bug
Xamarin Android 18.104.22.168 is not available to download in update channels, in Beta channel have the 22.214.171.124 version.