KeyError: 'JAVA_HOME'

[metulburr]

installed jdk package openjdk-8-jdk for ubuntu

metulburr@ubuntu:~/Downloads/android-zbar-qrcode-master$ python main.py 
[INFO   ] [Logger      ] Record log in /home/metulburr/.kivy/logs/kivy_17-04-19_1.txt
[INFO   ] [Kivy        ] v1.9.1
[INFO   ] [Python      ] v2.7.12 (default, Nov 19 2016, 06:48:10) 
[GCC 5.4.0 20160609]
[INFO   ] [Factory     ] 179 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_gif, img_sdl2, img_pil (img_ffpyplayer ignored)
 Traceback (most recent call last):
   File "main.py", line 28, in <module>
     from jnius import autoclass, PythonJavaClass, java_method, cast
   File "/home/metulburr/.local/lib/python2.7/site-packages/jnius/__init__.py", line 13, in <module>
     from .reflect import *  # noqa
   File "/home/metulburr/.local/lib/python2.7/site-packages/jnius/reflect.py", line 14, in <module>
     class Class(with_metaclass(MetaJavaClass, JavaClass)):
   File "/usr/lib/python2.7/dist-packages/six.py", line 808, in __new__
     return meta(name, bases, d)
   File "jnius/jnius_export_class.pxi", line 43, in jnius.MetaJavaClass.__new__ (jnius/jnius.c:17219)
   File "jnius/jnius_export_class.pxi", line 65, in jnius.MetaJavaClass.resolve_class (jnius/jnius.c:17615)
   File "jnius/jnius_env.pxi", line 11, in jnius.get_jnienv (jnius/jnius.c:3320)
   File "jnius/jnius_jvm_dlopen.pxi", line 90, in jnius.get_platform_jnienv (jnius/jnius.c:3248)
   File "jnius/jnius_jvm_dlopen.pxi", line 45, in jnius.create_jnienv (jnius/jnius.c:2647)
   File "/usr/lib/python2.7/UserDict.py", line 40, in __getitem__
     raise KeyError(key)
 KeyError: 'JAVA_HOME'

[bulletforyou]

how did you solve your problem?

[sarrabb]

i'm having the same problem can you tell me how did you fix it ??

[GoBig06]

I had a JAVE_HOME key issue too and fixed it by setting the jdk path in the etc/environment file 'JAVE_HOME=PATH/TO/YOUR/JDK/bin'

[JuggernautPanda]

Same issue. :( No fix yet.

[blu-base]

For future reference:
Had the same issue. My system defaults to openjdk11. However, the android sdk didn't work with that version. I set JAVA_HOME to java 8' jdk, such as:
export JAVA_HOME=/usr/lib64/jvm/jre-1.8.0-openjdk/