# Problem with uno build
**URL:** https://forums.fusetools.com/t/problem-with-uno-build/6294
**Category:** Bug Reports
**Created:** [March 8, 2017, 4:59am UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294 "2017-03-08T04:59:52Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)
#### Post date: [March 8, 2017, 4:59am UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294/1 "2017-03-08T04:59:52Z")
hi ,
i got this error using uno build:
$ uno build --target=Android --configuration=Release
Uno 0.46.1 (build 4840) Windows 8.1 x64 3caace9
Configuring (14.4 s)
Compiling syntax tree (8.9 s)
Generating code and data (27.1 s)
C:\Users\Egaleme\AppData\Local\Fusetools\Packages\UnoCore\0.46.1\targets\android@(Project.Name)\app\build.gradle(1.1): FATAL E6101: Object reference not set to an instance of an object.
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### Author:  [@Baggers](https://forums.fusetools.com/u/Baggers)
#### Post date: [March 8, 2017, 12:18pm UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294/2 "2017-03-08T12:18:15Z")
That’s odd, thanks for reporting.
Would you be able to upload a project that has this issue here?: [https://www.dropbox.com/request/ZgndLtJQm5eGzG9cicGK](https://www.dropbox.com/request/ZgndLtJQm5eGzG9cicGK)
This will help us narrow this issue down much faster.
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### Author:  [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)
#### Post date: [March 8, 2017, 7:11pm UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294/3 "2017-03-08T19:11:58Z")
i solved the problem by adding the android buildtools version and also my cmake version in my .sdkConfig file
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### Author:  [@Baggers](https://forums.fusetools.com/u/Baggers)
#### Post date: [March 9, 2017, 10:18am UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294/4 "2017-03-09T10:18:18Z")
Also interesting 🙂 Would you mind pasting your working .sdkConfig here? It may help us work out what was happening
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### Author:  [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)
#### Post date: [March 10, 2017, 9:21pm UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294/5 "2017-03-10T21:21:52Z")
{“Android.SDK.Directory”:“C:\Users\Egaleme\AppData\Local\Fusetools\Fuse\Android\AndroidSDK”,“Android.NDK.Directory”:null,“Ant.Directory”:“C:\Users\Egaleme\AppData\Local\Fusetools\Fuse\Android\Ant”,“Java.JDK.Directory”:“C:\Program Files\Java\jdk1.8.0\_91”,“Android.SDK.BuildToolsVersion”:null,“CMake”:null}
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### Author:  [@Baggers](https://forums.fusetools.com/u/Baggers)
#### Post date: [March 13, 2017, 1:06pm UTC](https://forums.fusetools.com/t/problem-with-uno-build/6294/6 "2017-03-13T13:06:06Z")
Thanks 🙂 that confirms something I was seeing.