[Users] Help

[Veritable34 -]

Hi,
I am developing applications with Eclipse
I downloaded the application from the link below.
https://github.com/opengisch/QField
I downloaded the library from the link below.
https://git.merproject.org/lbt/qtbase/tree/f963d70c30df4a00164874d369db9d2e1f2b7c05/src/android

When I run the application I got the error message as follows.
[2019-07-31 19:55:26 - Dex Loader] Unable to execute dex: Multiple dex files define Lch/opengis/qfield/BuildConfig;
[2019-07-31 19:55:26 - Odakent] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lch/opengis/qfield/BuildConfig;

How can I solve this?
I would really appreciate if you can help.

Regards,
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