### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 12, 2013, 3:52am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/4 "2013-07-12T03:52:45Z")
Thanks, to which element “” should I add this? I assume you mean ?
This shows 3.5 now in GAC Install.
However I need both, 2.0/3.5 and 4.0 gacutil in my project. How do I get 4.0 supported?
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 12, 2013, 3:54am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/5 "2013-07-12T03:54:10Z")
Should be
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 12, 2013, 3:54am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/6 "2013-07-12T03:54:44Z")
[code] \[/code]
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### Author:  [@nevar](https://www.finalbuilder.com/forums/u/nevar)
#### Post date: [July 15, 2013, 1:51am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/7 "2013-07-15T01:51:09Z")
Yes sorry I left that part out. Does this now work for you?
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 15, 2013, 10:53am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/8 "2013-07-15T10:53:23Z")
Not completely, how do I get 4.0 supported?
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### Author:  [@nevar](https://www.finalbuilder.com/forums/u/nevar)
#### Post date: [July 16, 2013, 1:58am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/9 "2013-07-16T01:58:01Z")
Hi Martin,
Backup your current DotNetConfig.xml and use the following one. This one correctly looks for the windows 8 sdk directory for 4.0 (and inline replacements).[DotNetConfig.xml](https://www.finalbuilder.com/forums/uploads/default/original/2X/6/6ea4edc110959575d441cfe7a5ff8fa85509303f.xml) (3.007 KB)
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 23, 2013, 5:37am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/10 "2013-07-23T05:37:27Z")
Sorry for my late response. It does not work. It displayes a v4.0 but still loads the 3.5 Version of GacUtil:
GAC Install [Assembly Path: M:\Subversion\LightsOut\Assemblies\VailAssemblies\GAC\NLog.dll]
Status: Error
Date: 23.07.2013
Time: 17:35:19:322
End: 17:35:19:489
Duration: 00:00:00:167
Action Messages:
Executing external process: C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\gacutil.exe
Starting Directory: C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\
Parameters: /i “M:\Subversion\LightsOut\Assemblies\VailAssemblies\GAC\NLog.dll”
Output from C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\gacutil.exe
Microsoft ® .NET Global Assembly Cache Utility. Version 3.5.30729.1
Copyright © Microsoft Corporation. All rights reserved.
Failure adding assembly to the cache: This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.
Action Failed
C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\gacutil.exe returned : 1
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### Author:  [@nevar](https://www.finalbuilder.com/forums/u/nevar)
#### Post date: [July 26, 2013, 2:20am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/11 "2013-07-26T02:20:15Z")
Hi Martin,
Try this updated file. wow6432Node section in the registry has been added. We are also adding support for 4.5.1.
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### Author:  [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [July 26, 2013, 9:58am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/12 "2013-07-26T09:58:14Z")
Hi Martin
This issue should be fixed in the update we just posted on the website. Jason & I finally figured out what the cause was today, I’m surprised that we haven’t seen this issue before.
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 29, 2013, 10:54am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/13 "2013-07-29T10:54:14Z")
Thanks, will give it a try.
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 29, 2013, 11:12am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/14 "2013-07-29T11:12:00Z")
Sorry, still does not work as expected. This time v4.0 is working but not 3.5.
[code] The .NET SDK version you are trying to use (v3.5) is not installed. Change the version in the action properties or the default in the FinalBuilder Options.[/code]
I have a project which creates a .Net 2.0/3.5 package and a 4.0 package. So I need to run GacUtil with both SDKs.
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### Author:  [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [July 29, 2013, 12:36pm UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/15 "2013-07-29T12:36:32Z")
Can you show export the HKEY\_LOCAL\_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\Windows registry key to a text file and send it to support at finalbuilder so we can see why 3.5 is not working?
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 29, 2013, 1:49am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/16 "2013-07-29T01:49:24Z")
Done.
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [July 30, 2013, 7:45am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/17 "2013-07-30T07:45:44Z")
Thanks, build 2382 is working on Windows XP (32 Bit) and Windows 8 (64 Bit).
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### Author:  [@tinus](https://www.finalbuilder.com/forums/u/tinus)
#### Post date: [August 6, 2013, 7:47am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/18 "2013-08-06T07:47:30Z")
Installed build 2411 today and now .Net 4.0 IS NO LONGER DETECTED!!
I’m back to build 2382.
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### Author:  [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [August 6, 2013, 10:26am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/19 "2013-08-06T10:26:34Z")
We’re working on this. Getting it to work reliably on every machine with every sdk version is proving difficult… microsoft keep changing how things are installed, and the behavior on windows 8 is different to 7 for some of the older versions.
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### Author:  [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [August 7, 2013, 5:37am UTC](https://www.finalbuilder.com/forums/t/gacutil-sdk-not-found-for-action-gac-install/2178/20 "2013-08-07T05:37:23Z")
> Posted By [Vincent Parrett](https://www.finalbuilder.com/User-Profile/userid/5.aspx) on 06 Aug 2013 03:26 AM
> We're working on this. Getting it to work reliably on every machine with every sdk version is proving difficult.. microsoft keep changing how things are installed, and the behavior on windows 8 is different to 7 for some of the older versions.
I totally understand the pain point here. MS APIs and software installations and various behaviours in x86/x64 on different platforms is driving me slowly to the loony bin. Please be careful when using the WOW6432 node in the registry Microsoft reserve the right to change it's use. See [http://msdn.microsoft.com/en-us/lib...s.85).aspx](http://msdn.microsoft.com/en-us/library/windows/desktop/ms724072(v=vs.85).aspx). Had to add .net 4 code to work the the correct registry hive as well as Windows API's for .net framework code prior to 4.0. PITA. See [http://stackoverflow.com/questions/...-using-net](http://stackoverflow.com/questions/1470770/accessing-registry-using-net) for an overview in the .net world.
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