I have some problems with an App, which I wrote with kivy an packaged with buildozer is always crashing when I try to run in on my phone. On my PC I use Ubuntu 14.10 and I don't get any error when compiling it (buildozer android debug). Then I send it on my SmartPhone and I install and run it, but it just loads and after a few seconds it crashes. By the way the kivy program is not very big. 
Could someone help me, please? And sorry for my bad grammar ;)
If you are using kivy and your app loads some images, then there is no problem. But if you are using some other packages like pygame to load images, it will crash. Or if you are working in some files like reading or writing a text file, it will crash. Because when you package your app with buildozer, It will move the additional files of your app (.txt, .png) to a different location. So your python file fails to find the additional files in your specified location.
To solve this, do some corrections in your python file like changing the path of the additional file from the current directory of the python file to the path that is referred below.
PATH = "/data/data/#package domain#.#package name#/files/app"
In the above path change #package domain# with the domain of your package and #package name# with your package name.
All the additional files of any app that is installed in an android device will go to this location.
Try out this. All the best.
Android App created with Kivy (Buildozer) crashes on phone, but why?