# Error building qgroundcontrol for Android

**URL:** <https://discuss.px4.io/t/error-building-qgroundcontrol-for-android/15842>\
**Category:** Uncategorized\
**Created:** [March 24, 2020, 3:46am UTC](https://discuss.px4.io/t/error-building-qgroundcontrol-for-android/15842 "2020-03-24T03:46:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![redxar](https://discuss.px4.io/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@redxar](https://discuss.px4.io/u/redxar)\
**Post date:** [March 24, 2020, 3:46am UTC](https://discuss.px4.io/t/error-building-qgroundcontrol-for-android/15842/1 "2020-03-24T03:46:28Z")

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Basically 2 questions (trying to solve the first I run into an additional question). I have tried a few different things and am at a loss as to which direction to proceed so any pointers is much appreciated. My problem:

I am using QT Creator trying to build the [qgroundcontrol](https://github.com/mavlink/qgroundcontrol) project for Android device. It is very recent, maybe 1 week old. (I am able to build it for Windows). The build output I get the following error:

> compileDebugAidl FAILED FAILURE: Build failed with an exception.  
> What went wrong: Execution failed for task ‘:compileDebugAidl’.  
> com.android.ide.common.process.ProcessException:  
> org.gradle.process.internal.ExecException: Process ‘command  
> ‘C:\Users\chuck\AppData\Local\Android\Sdk\build-tools\29.0.0\aidl.exe’’  
> finished with non-zero exit value -1073741819

I researched this error and found this [SO question](https://stackoverflow.com/questions/56510253/android-aidl-error-sdk-build-tools-29-0-0):

It says there is a known bug in 29.0.0 so I follow the advice in the answers and try to revert back to build tools version 28.0.3. (This may not even be the solution to the problem but I went down this path - let me know if there is a better solution…)

I get the following error:

> FAILURE: Build failed with an exception.
> 
> What went wrong: A problem occurred configuring root project  
> ‘android-build’. failed to find Build Tools revision 29.0.0

What is making it look for build tools 29.0.0? After this error I reverted the Platform tools version back to 28.0.2 from 29.x thinking that this may be causing it and I still get the same result. I have looked through the gradle files and the QT solution and can not find any reference to that version (29.0.0) of build tool.

It is suggesting that I Try:  
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. - I am new to QT and have not yet figured out how to do this yet. Any pointers appreciated.

My tool details follow:

[![Android Device and Tools Setup](https://i.stack.imgur.com/CCYZk.png)](https://i.stack.imgur.com/CCYZk.png)

The full build output first case (aidl error): [https://textuploader.com/1jt7q](https://textuploader.com/1jt7q)!

The full build output second case (tools error): [http://txt.do/1jt7k](http://txt.do/1jt7k)

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**Author:** ![DonLakeFlyer](https://discuss.px4.io/user_avatar/discuss.px4.io/donlakeflyer/32/3036_2.png) [@DonLakeFlyer](https://discuss.px4.io/u/DonLakeFlyer)\
**Post date:** [March 24, 2020, 5:29pm UTC](https://discuss.px4.io/t/error-building-qgroundcontrol-for-android/15842/2 "2020-03-24T17:29:32Z")

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Just for FYI: The CI released version of QGC are built with the 28 SDK and the 25.0.3 build tools.

Getting android setup correctly is a nightmare of complexity. I would expect doubly so on Windows. You best help is Qt docs.