12-12 21:25:17.531 11776 11899 I python  :  Traceback (most recent call last):
12-12 21:25:17.531 11776 11899 I python  :    File "/home/yobagram/PycharmProjects/kivy_test4/kivy/examples/android/compass/.buildozer/android/app/main.py", line 77, in <module>
12-12 21:25:17.532 11776 11899 I python  :    File "/home/yobagram/PycharmProjects/kivy_test4/kivy/examples/android/compass/.buildozer/android/platform/build/build/python-installs/myapp/kivy/app.py", line 829, in run
12-12 21:25:17.533 11776 11899 I python  :    File "/home/yobagram/PycharmProjects/kivy_test4/kivy/examples/android/compass/.buildozer/android/app/main.py", line 42, in build
12-12 21:25:17.534 11776 11899 I python  :    File "jnius/jnius_export_class.pxi", line 765, in jnius.jnius.JavaMethod.__call__
12-12 21:25:17.534 11776 11899 I python  :    File "jnius/jnius_export_class.pxi", line 948, in jnius.jnius.JavaMethod.call_staticmethod
12-12 21:25:17.535 11776 11899 I python  :    File "jnius/jnius_utils.pxi", line 91, in jnius.jnius.check_exception
12-12 21:25:17.536 11776 11899 I python  :  jnius.jnius.JavaException: JVM exception occurred: Attempt to invoke virtual method 'java.lang.Object android.content.Context.getSystemService(java.lang.String)' on a null object reference
12-12 21:25:17.536 11776 11899 I python  : Python for android ended.