# IncrediBuild - Unknown build set Class ID: DE

**URL:** https://www.finalbuilder.com/forums/t/incredibuild-unknown-build-set-class-id-de/2329
**Category:** Discussion
**Created:** [December 31, 2014, 5:10am UTC](https://www.finalbuilder.com/forums/t/incredibuild-unknown-build-set-class-id-de/2329 "2014-12-31T05:10:03Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![mhart](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/mhart/32/55_2.png) [@mhart](https://www.finalbuilder.com/forums/u/mhart)
#### Post date: [December 31, 2014, 5:10am UTC](https://www.finalbuilder.com/forums/t/incredibuild-unknown-build-set-class-id-de/2329/1 "2014-12-31T05:10:03Z")

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I am using FinalBuilder v7.0.0.3135 with the IncrediBuild plugin, but I’m having trouble compiling some of my solutions (not all of them).  
On some solutions I am getting an error message: Unknown build set Class ID: DE  
I have configured the plugin with the required parameters (see attachment).  
  
Other solutions compile just fine with the same options.  
  
Regards,  
Martin.

 ![__33121__ 0__FinalBuilderIncrediBuild.png](https://www.finalbuilder.com/forums/uploads/default/original/2X/d/de07b14f30976bdf662dc6b8bd298ec65a3c84af.png)

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### Author: ![mhart](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/mhart/32/55_2.png) [@mhart](https://www.finalbuilder.com/forums/u/mhart)
#### Post date: [December 31, 2014, 5:15am UTC](https://www.finalbuilder.com/forums/t/incredibuild-unknown-build-set-class-id-de/2329/2 "2014-12-31T05:15:18Z")

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IncrediBuild have replied:

_We are aware of this rare problem and it might be related to your SLN file format. It is possible that from some reason the content of this file which defines the Visual Studio version is in an unknown format for IncrediBuild and therefore, IncrediBuild cant determine the Visual Studio version._

 

_I dont know if you have control on the build command in FinalBuilder but basically, you should add the following switch to IncrediBuild build command: /vsversion=“vc12”_

 

_This specific switch is for Visual Studio 2013. If your Visual Studio is from other version, you can use the following switches:_

 

_vc8 (for VS2005), vc9 (for VS2008), vc10 (for VS2010), vc11 (for VS2012)_

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### Author: ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [January 4, 2015, 11:32am UTC](https://www.finalbuilder.com/forums/t/incredibuild-unknown-build-set-class-id-de/2329/3 "2015-01-04T11:32:13Z")

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Did this solve the problem?

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### Author: ![nevar](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/n/c4cdca/32.png) [@nevar](https://www.finalbuilder.com/forums/u/nevar)
#### Post date: [January 5, 2015, 1:26am UTC](https://www.finalbuilder.com/forums/t/incredibuild-unknown-build-set-class-id-de/2329/4 "2015-01-05T01:26:17Z")

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Hi Martin,   
  
 In the properties window for the IncrediBuild action there is a property called Extra Params At End, and another called Extra Params At Start. This allows you at add additional command line options for external tools at the beginning or end of what we supply.   
  
 Therefore I suggest adding the /vsversion=“vc12” option to the Extra Params At End property. From what IncrediBuild support have sent you this should correct the issue your seeing.